./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem11_label54.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem11_label54.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash edb6f856db72a43ad08c83ff0e1ee56d288f58300ccdf5a7b1b400a926b63cbe --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-17 04:26:15,066 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-17 04:26:15,068 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-17 04:26:15,123 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-17 04:26:15,124 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-17 04:26:15,125 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-17 04:26:15,126 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-17 04:26:15,128 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-17 04:26:15,129 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-17 04:26:15,130 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-17 04:26:15,130 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-17 04:26:15,131 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-17 04:26:15,132 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-17 04:26:15,133 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-17 04:26:15,134 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-17 04:26:15,135 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-17 04:26:15,135 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-17 04:26:15,136 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-17 04:26:15,138 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-17 04:26:15,139 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-17 04:26:15,140 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-17 04:26:15,141 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-17 04:26:15,143 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-17 04:26:15,143 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-17 04:26:15,146 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-17 04:26:15,146 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-17 04:26:15,146 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-17 04:26:15,147 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-17 04:26:15,147 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-17 04:26:15,148 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-17 04:26:15,149 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-17 04:26:15,149 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-17 04:26:15,150 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-17 04:26:15,150 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-17 04:26:15,151 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-17 04:26:15,151 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-17 04:26:15,152 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-17 04:26:15,152 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-17 04:26:15,153 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-17 04:26:15,153 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-17 04:26:15,154 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-17 04:26:15,156 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-17 04:26:15,176 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-17 04:26:15,176 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-17 04:26:15,176 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-17 04:26:15,177 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-17 04:26:15,177 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-17 04:26:15,177 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-17 04:26:15,178 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-17 04:26:15,178 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-17 04:26:15,178 INFO L138 SettingsManager]: * Use SBE=true [2021-12-17 04:26:15,179 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-17 04:26:15,179 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-17 04:26:15,179 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-17 04:26:15,179 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-17 04:26:15,180 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-17 04:26:15,180 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-17 04:26:15,180 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-17 04:26:15,180 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-17 04:26:15,180 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-17 04:26:15,181 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-17 04:26:15,181 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-17 04:26:15,181 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-17 04:26:15,181 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-17 04:26:15,182 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-17 04:26:15,182 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-17 04:26:15,182 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 04:26:15,182 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-17 04:26:15,182 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-17 04:26:15,183 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-17 04:26:15,183 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-17 04:26:15,183 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-17 04:26:15,183 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-17 04:26:15,183 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-17 04:26:15,184 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-17 04:26:15,184 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-17 04:26:15,184 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> edb6f856db72a43ad08c83ff0e1ee56d288f58300ccdf5a7b1b400a926b63cbe [2021-12-17 04:26:15,381 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-17 04:26:15,401 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-17 04:26:15,403 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-17 04:26:15,404 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-17 04:26:15,405 INFO L275 PluginConnector]: CDTParser initialized [2021-12-17 04:26:15,406 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem11_label54.c [2021-12-17 04:26:15,465 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b55055a43/57e01104d9604ef7aa7d5a74c2376015/FLAGc05da3401 [2021-12-17 04:26:15,931 INFO L306 CDTParser]: Found 1 translation units. [2021-12-17 04:26:15,932 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem11_label54.c [2021-12-17 04:26:15,963 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b55055a43/57e01104d9604ef7aa7d5a74c2376015/FLAGc05da3401 [2021-12-17 04:26:16,243 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b55055a43/57e01104d9604ef7aa7d5a74c2376015 [2021-12-17 04:26:16,245 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-17 04:26:16,246 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-17 04:26:16,250 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-17 04:26:16,250 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-17 04:26:16,253 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-17 04:26:16,254 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 04:26:16" (1/1) ... [2021-12-17 04:26:16,255 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2da1a28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:26:16, skipping insertion in model container [2021-12-17 04:26:16,256 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 04:26:16" (1/1) ... [2021-12-17 04:26:16,261 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-17 04:26:16,304 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-17 04:26:16,569 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem11_label54.c[5423,5436] [2021-12-17 04:26:16,782 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 04:26:16,789 INFO L203 MainTranslator]: Completed pre-run [2021-12-17 04:26:16,818 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem11_label54.c[5423,5436] [2021-12-17 04:26:16,946 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-17 04:26:16,958 INFO L208 MainTranslator]: Completed translation [2021-12-17 04:26:16,959 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:26:16 WrapperNode [2021-12-17 04:26:16,959 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-17 04:26:16,961 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-17 04:26:16,961 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-17 04:26:16,961 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-17 04:26:16,968 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:26:16" (1/1) ... [2021-12-17 04:26:16,994 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:26:16" (1/1) ... [2021-12-17 04:26:17,086 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 999 [2021-12-17 04:26:17,087 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-17 04:26:17,088 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-17 04:26:17,088 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-17 04:26:17,088 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-17 04:26:17,095 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:26:16" (1/1) ... [2021-12-17 04:26:17,096 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:26:16" (1/1) ... [2021-12-17 04:26:17,115 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:26:16" (1/1) ... [2021-12-17 04:26:17,119 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:26:16" (1/1) ... [2021-12-17 04:26:17,204 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:26:16" (1/1) ... [2021-12-17 04:26:17,224 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:26:16" (1/1) ... [2021-12-17 04:26:17,255 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:26:16" (1/1) ... [2021-12-17 04:26:17,271 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-17 04:26:17,273 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-17 04:26:17,274 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-17 04:26:17,274 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-17 04:26:17,275 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:26:16" (1/1) ... [2021-12-17 04:26:17,281 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-17 04:26:17,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 04:26:17,308 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-17 04:26:17,332 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-17 04:26:17,348 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-17 04:26:17,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-17 04:26:17,348 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-17 04:26:17,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-17 04:26:17,406 INFO L236 CfgBuilder]: Building ICFG [2021-12-17 04:26:17,408 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-17 04:26:18,668 INFO L277 CfgBuilder]: Performing block encoding [2021-12-17 04:26:18,683 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-17 04:26:18,683 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-17 04:26:18,686 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 04:26:18 BoogieIcfgContainer [2021-12-17 04:26:18,686 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-17 04:26:18,688 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-17 04:26:18,688 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-17 04:26:18,691 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-17 04:26:18,691 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 04:26:16" (1/3) ... [2021-12-17 04:26:18,692 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66e4edfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 04:26:18, skipping insertion in model container [2021-12-17 04:26:18,693 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:26:16" (2/3) ... [2021-12-17 04:26:18,693 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66e4edfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 04:26:18, skipping insertion in model container [2021-12-17 04:26:18,694 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 04:26:18" (3/3) ... [2021-12-17 04:26:18,695 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem11_label54.c [2021-12-17 04:26:18,699 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-17 04:26:18,700 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-17 04:26:18,753 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-17 04:26:18,761 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-17 04:26:18,762 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-17 04:26:18,786 INFO L276 IsEmpty]: Start isEmpty. Operand has 283 states, 281 states have (on average 1.7153024911032029) internal successors, (482), 282 states have internal predecessors, (482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:26:18,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-12-17 04:26:18,794 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:26:18,795 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 04:26:18,795 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:26:18,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:26:18,801 INFO L85 PathProgramCache]: Analyzing trace with hash 2088660649, now seen corresponding path program 1 times [2021-12-17 04:26:18,808 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:26:18,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69048086] [2021-12-17 04:26:18,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:26:18,810 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:26:18,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:26:19,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 04:26:19,022 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:26:19,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69048086] [2021-12-17 04:26:19,023 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69048086] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:26:19,024 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 04:26:19,024 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-17 04:26:19,025 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231129861] [2021-12-17 04:26:19,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:26:19,029 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 04:26:19,030 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:26:19,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 04:26:19,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 04:26:19,055 INFO L87 Difference]: Start difference. First operand has 283 states, 281 states have (on average 1.7153024911032029) internal successors, (482), 282 states have internal predecessors, (482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 2 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:26:20,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:26:20,053 INFO L93 Difference]: Finished difference Result 763 states and 1352 transitions. [2021-12-17 04:26:20,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 04:26:20,055 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 2 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-12-17 04:26:20,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:26:20,073 INFO L225 Difference]: With dead ends: 763 [2021-12-17 04:26:20,073 INFO L226 Difference]: Without dead ends: 416 [2021-12-17 04:26:20,079 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 04:26:20,088 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 236 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 585 mSolverCounterSat, 247 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 832 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 247 IncrementalHoareTripleChecker+Valid, 585 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-17 04:26:20,090 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [236 Valid, 89 Invalid, 832 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [247 Valid, 585 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-17 04:26:20,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2021-12-17 04:26:20,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 408. [2021-12-17 04:26:20,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 407 states have (on average 1.6142506142506143) internal successors, (657), 407 states have internal predecessors, (657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:26:20,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 657 transitions. [2021-12-17 04:26:20,141 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 657 transitions. Word has length 37 [2021-12-17 04:26:20,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:26:20,142 INFO L470 AbstractCegarLoop]: Abstraction has 408 states and 657 transitions. [2021-12-17 04:26:20,142 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 2 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:26:20,142 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 657 transitions. [2021-12-17 04:26:20,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-12-17 04:26:20,145 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:26:20,145 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 04:26:20,145 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-17 04:26:20,146 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:26:20,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:26:20,146 INFO L85 PathProgramCache]: Analyzing trace with hash 1296179654, now seen corresponding path program 1 times [2021-12-17 04:26:20,147 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:26:20,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632627177] [2021-12-17 04:26:20,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:26:20,147 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:26:20,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:26:20,249 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 04:26:20,249 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:26:20,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632627177] [2021-12-17 04:26:20,250 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632627177] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:26:20,250 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 04:26:20,250 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-17 04:26:20,250 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508095421] [2021-12-17 04:26:20,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:26:20,252 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 04:26:20,252 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:26:20,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 04:26:20,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 04:26:20,253 INFO L87 Difference]: Start difference. First operand 408 states and 657 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 2 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:26:20,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:26:20,964 INFO L93 Difference]: Finished difference Result 1191 states and 1927 transitions. [2021-12-17 04:26:20,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 04:26:20,965 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 2 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 102 [2021-12-17 04:26:20,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:26:20,968 INFO L225 Difference]: With dead ends: 1191 [2021-12-17 04:26:20,968 INFO L226 Difference]: Without dead ends: 785 [2021-12-17 04:26:20,970 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 04:26:20,971 INFO L933 BasicCegarLoop]: 127 mSDtfsCounter, 157 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 534 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 534 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-17 04:26:20,971 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 156 Invalid, 632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 534 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-17 04:26:20,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 785 states. [2021-12-17 04:26:20,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 785 to 601. [2021-12-17 04:26:20,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 601 states, 600 states have (on average 1.5) internal successors, (900), 600 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:26:20,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 900 transitions. [2021-12-17 04:26:20,992 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 900 transitions. Word has length 102 [2021-12-17 04:26:20,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:26:20,993 INFO L470 AbstractCegarLoop]: Abstraction has 601 states and 900 transitions. [2021-12-17 04:26:20,993 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 2 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:26:20,993 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 900 transitions. [2021-12-17 04:26:20,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-12-17 04:26:20,996 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:26:20,996 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 04:26:20,996 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-17 04:26:20,997 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:26:20,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:26:20,997 INFO L85 PathProgramCache]: Analyzing trace with hash -1017074320, now seen corresponding path program 1 times [2021-12-17 04:26:20,998 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:26:20,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848742143] [2021-12-17 04:26:20,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:26:20,998 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:26:21,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:26:21,068 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 04:26:21,068 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:26:21,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848742143] [2021-12-17 04:26:21,069 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848742143] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:26:21,069 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 04:26:21,069 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-17 04:26:21,069 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333565679] [2021-12-17 04:26:21,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:26:21,070 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 04:26:21,070 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:26:21,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 04:26:21,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 04:26:21,071 INFO L87 Difference]: Start difference. First operand 601 states and 900 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 2 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:26:21,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:26:21,761 INFO L93 Difference]: Finished difference Result 1582 states and 2353 transitions. [2021-12-17 04:26:21,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 04:26:21,762 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 2 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2021-12-17 04:26:21,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:26:21,765 INFO L225 Difference]: With dead ends: 1582 [2021-12-17 04:26:21,766 INFO L226 Difference]: Without dead ends: 983 [2021-12-17 04:26:21,767 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 04:26:21,768 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 144 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 142 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 142 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-17 04:26:21,768 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 115 Invalid, 664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [142 Valid, 522 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-17 04:26:21,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 983 states. [2021-12-17 04:26:21,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 983 to 972. [2021-12-17 04:26:21,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 972 states, 971 states have (on average 1.3707518022657055) internal successors, (1331), 971 states have internal predecessors, (1331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:26:21,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 972 states to 972 states and 1331 transitions. [2021-12-17 04:26:21,800 INFO L78 Accepts]: Start accepts. Automaton has 972 states and 1331 transitions. Word has length 105 [2021-12-17 04:26:21,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:26:21,801 INFO L470 AbstractCegarLoop]: Abstraction has 972 states and 1331 transitions. [2021-12-17 04:26:21,801 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 2 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:26:21,801 INFO L276 IsEmpty]: Start isEmpty. Operand 972 states and 1331 transitions. [2021-12-17 04:26:21,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-12-17 04:26:21,806 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:26:21,806 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 04:26:21,807 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-17 04:26:21,807 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:26:21,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:26:21,808 INFO L85 PathProgramCache]: Analyzing trace with hash -166569456, now seen corresponding path program 1 times [2021-12-17 04:26:21,808 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:26:21,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782246451] [2021-12-17 04:26:21,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:26:21,809 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:26:21,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:26:21,901 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 04:26:21,901 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:26:21,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782246451] [2021-12-17 04:26:21,902 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782246451] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:26:21,903 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 04:26:21,903 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-17 04:26:21,903 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296510958] [2021-12-17 04:26:21,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:26:21,905 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 04:26:21,905 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:26:21,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 04:26:21,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 04:26:21,906 INFO L87 Difference]: Start difference. First operand 972 states and 1331 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 2 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:26:22,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:26:22,621 INFO L93 Difference]: Finished difference Result 2680 states and 3671 transitions. [2021-12-17 04:26:22,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 04:26:22,621 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 2 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2021-12-17 04:26:22,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:26:22,627 INFO L225 Difference]: With dead ends: 2680 [2021-12-17 04:26:22,628 INFO L226 Difference]: Without dead ends: 1710 [2021-12-17 04:26:22,629 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 04:26:22,630 INFO L933 BasicCegarLoop]: 168 mSDtfsCounter, 120 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 521 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-17 04:26:22,631 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 192 Invalid, 637 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 521 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-17 04:26:22,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1710 states. [2021-12-17 04:26:22,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1710 to 1709. [2021-12-17 04:26:22,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1709 states, 1708 states have (on average 1.2318501170960188) internal successors, (2104), 1708 states have internal predecessors, (2104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:26:22,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1709 states to 1709 states and 2104 transitions. [2021-12-17 04:26:22,659 INFO L78 Accepts]: Start accepts. Automaton has 1709 states and 2104 transitions. Word has length 106 [2021-12-17 04:26:22,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:26:22,659 INFO L470 AbstractCegarLoop]: Abstraction has 1709 states and 2104 transitions. [2021-12-17 04:26:22,659 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 2 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:26:22,660 INFO L276 IsEmpty]: Start isEmpty. Operand 1709 states and 2104 transitions. [2021-12-17 04:26:22,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2021-12-17 04:26:22,662 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:26:22,663 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 04:26:22,663 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-17 04:26:22,663 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:26:22,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:26:22,664 INFO L85 PathProgramCache]: Analyzing trace with hash -1961217037, now seen corresponding path program 1 times [2021-12-17 04:26:22,664 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:26:22,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429525259] [2021-12-17 04:26:22,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:26:22,665 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:26:22,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:26:22,765 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 04:26:22,766 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:26:22,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429525259] [2021-12-17 04:26:22,766 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429525259] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:26:22,766 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 04:26:22,767 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 04:26:22,767 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094805227] [2021-12-17 04:26:22,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:26:22,768 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 04:26:22,768 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:26:22,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 04:26:22,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 04:26:22,769 INFO L87 Difference]: Start difference. First operand 1709 states and 2104 transitions. Second operand has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:26:23,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:26:23,445 INFO L93 Difference]: Finished difference Result 3980 states and 4958 transitions. [2021-12-17 04:26:23,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 04:26:23,446 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 217 [2021-12-17 04:26:23,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:26:23,456 INFO L225 Difference]: With dead ends: 3980 [2021-12-17 04:26:23,456 INFO L226 Difference]: Without dead ends: 2457 [2021-12-17 04:26:23,458 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 04:26:23,465 INFO L933 BasicCegarLoop]: 313 mSDtfsCounter, 135 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 547 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 547 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-17 04:26:23,466 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 334 Invalid, 638 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 547 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-17 04:26:23,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2457 states. [2021-12-17 04:26:23,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2457 to 2080. [2021-12-17 04:26:23,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2080 states, 2079 states have (on average 1.227994227994228) internal successors, (2553), 2079 states have internal predecessors, (2553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:26:23,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2080 states to 2080 states and 2553 transitions. [2021-12-17 04:26:23,500 INFO L78 Accepts]: Start accepts. Automaton has 2080 states and 2553 transitions. Word has length 217 [2021-12-17 04:26:23,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:26:23,502 INFO L470 AbstractCegarLoop]: Abstraction has 2080 states and 2553 transitions. [2021-12-17 04:26:23,503 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:26:23,505 INFO L276 IsEmpty]: Start isEmpty. Operand 2080 states and 2553 transitions. [2021-12-17 04:26:23,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2021-12-17 04:26:23,508 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:26:23,508 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 04:26:23,509 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-17 04:26:23,509 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:26:23,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:26:23,511 INFO L85 PathProgramCache]: Analyzing trace with hash 629777389, now seen corresponding path program 1 times [2021-12-17 04:26:23,511 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:26:23,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082345682] [2021-12-17 04:26:23,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:26:23,517 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:26:23,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:26:23,665 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2021-12-17 04:26:23,666 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:26:23,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082345682] [2021-12-17 04:26:23,666 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082345682] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:26:23,666 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 04:26:23,666 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 04:26:23,667 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907341826] [2021-12-17 04:26:23,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:26:23,667 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 04:26:23,667 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:26:23,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 04:26:23,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 04:26:23,668 INFO L87 Difference]: Start difference. First operand 2080 states and 2553 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:26:24,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:26:24,415 INFO L93 Difference]: Finished difference Result 5091 states and 6367 transitions. [2021-12-17 04:26:24,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 04:26:24,415 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 218 [2021-12-17 04:26:24,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:26:24,425 INFO L225 Difference]: With dead ends: 5091 [2021-12-17 04:26:24,425 INFO L226 Difference]: Without dead ends: 2828 [2021-12-17 04:26:24,428 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 04:26:24,430 INFO L933 BasicCegarLoop]: 321 mSDtfsCounter, 184 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 588 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 588 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-17 04:26:24,434 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [184 Valid, 346 Invalid, 677 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 588 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-17 04:26:24,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2828 states. [2021-12-17 04:26:24,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2828 to 2828. [2021-12-17 04:26:24,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2828 states, 2827 states have (on average 1.2412451361867705) internal successors, (3509), 2827 states have internal predecessors, (3509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:26:24,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2828 states to 2828 states and 3509 transitions. [2021-12-17 04:26:24,481 INFO L78 Accepts]: Start accepts. Automaton has 2828 states and 3509 transitions. Word has length 218 [2021-12-17 04:26:24,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:26:24,482 INFO L470 AbstractCegarLoop]: Abstraction has 2828 states and 3509 transitions. [2021-12-17 04:26:24,482 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:26:24,483 INFO L276 IsEmpty]: Start isEmpty. Operand 2828 states and 3509 transitions. [2021-12-17 04:26:24,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2021-12-17 04:26:24,487 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:26:24,488 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 04:26:24,488 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-17 04:26:24,488 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:26:24,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:26:24,489 INFO L85 PathProgramCache]: Analyzing trace with hash 216235323, now seen corresponding path program 1 times [2021-12-17 04:26:24,489 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:26:24,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729551934] [2021-12-17 04:26:24,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:26:24,490 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:26:24,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:26:24,625 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 159 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-17 04:26:24,626 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:26:24,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729551934] [2021-12-17 04:26:24,626 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729551934] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:26:24,626 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 04:26:24,626 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 04:26:24,627 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034951534] [2021-12-17 04:26:24,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:26:24,627 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-17 04:26:24,627 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:26:24,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-17 04:26:24,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-17 04:26:24,628 INFO L87 Difference]: Start difference. First operand 2828 states and 3509 transitions. Second operand has 4 states, 4 states have (on average 63.75) internal successors, (255), 3 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:26:25,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:26:25,782 INFO L93 Difference]: Finished difference Result 8627 states and 10846 transitions. [2021-12-17 04:26:25,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-17 04:26:25,783 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 63.75) internal successors, (255), 3 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 255 [2021-12-17 04:26:25,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:26:25,803 INFO L225 Difference]: With dead ends: 8627 [2021-12-17 04:26:25,803 INFO L226 Difference]: Without dead ends: 5801 [2021-12-17 04:26:25,808 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-17 04:26:25,809 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 289 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 1107 mSolverCounterSat, 160 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 1267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 160 IncrementalHoareTripleChecker+Valid, 1107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-17 04:26:25,810 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [289 Valid, 87 Invalid, 1267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [160 Valid, 1107 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-17 04:26:25,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5801 states. [2021-12-17 04:26:25,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5801 to 5432. [2021-12-17 04:26:25,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5432 states, 5431 states have (on average 1.2430491622169029) internal successors, (6751), 5431 states have internal predecessors, (6751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:26:25,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5432 states to 5432 states and 6751 transitions. [2021-12-17 04:26:25,916 INFO L78 Accepts]: Start accepts. Automaton has 5432 states and 6751 transitions. Word has length 255 [2021-12-17 04:26:25,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:26:25,917 INFO L470 AbstractCegarLoop]: Abstraction has 5432 states and 6751 transitions. [2021-12-17 04:26:25,918 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 63.75) internal successors, (255), 3 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:26:25,918 INFO L276 IsEmpty]: Start isEmpty. Operand 5432 states and 6751 transitions. [2021-12-17 04:26:25,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2021-12-17 04:26:25,923 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:26:25,923 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 04:26:25,923 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-17 04:26:25,924 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:26:25,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:26:25,925 INFO L85 PathProgramCache]: Analyzing trace with hash -2143692386, now seen corresponding path program 1 times [2021-12-17 04:26:25,925 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:26:25,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914998056] [2021-12-17 04:26:25,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:26:25,926 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:26:25,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:26:26,081 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2021-12-17 04:26:26,081 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:26:26,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914998056] [2021-12-17 04:26:26,082 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914998056] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:26:26,082 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 04:26:26,082 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 04:26:26,082 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515101690] [2021-12-17 04:26:26,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:26:26,083 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 04:26:26,083 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:26:26,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 04:26:26,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 04:26:26,084 INFO L87 Difference]: Start difference. First operand 5432 states and 6751 transitions. Second operand has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:26:26,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:26:26,788 INFO L93 Difference]: Finished difference Result 10679 states and 13514 transitions. [2021-12-17 04:26:26,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 04:26:26,788 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 269 [2021-12-17 04:26:26,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:26:26,809 INFO L225 Difference]: With dead ends: 10679 [2021-12-17 04:26:26,809 INFO L226 Difference]: Without dead ends: 6175 [2021-12-17 04:26:26,815 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 04:26:26,816 INFO L933 BasicCegarLoop]: 125 mSDtfsCounter, 187 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 530 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-17 04:26:26,816 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [187 Valid, 153 Invalid, 628 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 530 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-17 04:26:26,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6175 states. [2021-12-17 04:26:26,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6175 to 5432. [2021-12-17 04:26:26,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5432 states, 5431 states have (on average 1.2430491622169029) internal successors, (6751), 5431 states have internal predecessors, (6751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:26:26,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5432 states to 5432 states and 6751 transitions. [2021-12-17 04:26:26,904 INFO L78 Accepts]: Start accepts. Automaton has 5432 states and 6751 transitions. Word has length 269 [2021-12-17 04:26:26,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:26:26,904 INFO L470 AbstractCegarLoop]: Abstraction has 5432 states and 6751 transitions. [2021-12-17 04:26:26,905 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:26:26,905 INFO L276 IsEmpty]: Start isEmpty. Operand 5432 states and 6751 transitions. [2021-12-17 04:26:26,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2021-12-17 04:26:26,909 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:26:26,910 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 04:26:26,911 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-17 04:26:26,911 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:26:26,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:26:26,912 INFO L85 PathProgramCache]: Analyzing trace with hash 1892161860, now seen corresponding path program 1 times [2021-12-17 04:26:26,912 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:26:26,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077451482] [2021-12-17 04:26:26,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:26:26,913 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:26:26,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:26:27,047 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2021-12-17 04:26:27,047 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:26:27,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077451482] [2021-12-17 04:26:27,048 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1077451482] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:26:27,048 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 04:26:27,048 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 04:26:27,048 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684743042] [2021-12-17 04:26:27,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:26:27,049 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 04:26:27,049 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:26:27,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 04:26:27,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 04:26:27,050 INFO L87 Difference]: Start difference. First operand 5432 states and 6751 transitions. Second operand has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 3 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:26:27,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:26:27,763 INFO L93 Difference]: Finished difference Result 14360 states and 18130 transitions. [2021-12-17 04:26:27,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 04:26:27,764 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 3 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 272 [2021-12-17 04:26:27,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:26:27,791 INFO L225 Difference]: With dead ends: 14360 [2021-12-17 04:26:27,791 INFO L226 Difference]: Without dead ends: 9298 [2021-12-17 04:26:27,799 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 04:26:27,800 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 183 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 545 mSolverCounterSat, 138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 138 IncrementalHoareTripleChecker+Valid, 545 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-17 04:26:27,800 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [183 Valid, 107 Invalid, 683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [138 Valid, 545 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-17 04:26:27,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9298 states. [2021-12-17 04:26:27,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9298 to 9292. [2021-12-17 04:26:27,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9292 states, 9291 states have (on average 1.2449682488429663) internal successors, (11567), 9291 states have internal predecessors, (11567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:26:27,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9292 states to 9292 states and 11567 transitions. [2021-12-17 04:26:27,962 INFO L78 Accepts]: Start accepts. Automaton has 9292 states and 11567 transitions. Word has length 272 [2021-12-17 04:26:27,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:26:27,963 INFO L470 AbstractCegarLoop]: Abstraction has 9292 states and 11567 transitions. [2021-12-17 04:26:27,964 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 3 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:26:27,964 INFO L276 IsEmpty]: Start isEmpty. Operand 9292 states and 11567 transitions. [2021-12-17 04:26:27,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2021-12-17 04:26:27,972 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:26:27,973 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 04:26:27,973 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-17 04:26:27,973 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:26:27,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:26:27,974 INFO L85 PathProgramCache]: Analyzing trace with hash -218760648, now seen corresponding path program 1 times [2021-12-17 04:26:27,974 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:26:27,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150824060] [2021-12-17 04:26:27,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:26:27,974 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:26:28,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:26:28,093 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2021-12-17 04:26:28,094 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:26:28,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150824060] [2021-12-17 04:26:28,094 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150824060] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:26:28,094 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 04:26:28,094 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 04:26:28,095 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503101563] [2021-12-17 04:26:28,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:26:28,095 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 04:26:28,095 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:26:28,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 04:26:28,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 04:26:28,096 INFO L87 Difference]: Start difference. First operand 9292 states and 11567 transitions. Second operand has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:26:28,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:26:28,775 INFO L93 Difference]: Finished difference Result 19863 states and 25212 transitions. [2021-12-17 04:26:28,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 04:26:28,776 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 310 [2021-12-17 04:26:28,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:26:28,800 INFO L225 Difference]: With dead ends: 19863 [2021-12-17 04:26:28,801 INFO L226 Difference]: Without dead ends: 12051 [2021-12-17 04:26:28,811 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 04:26:28,812 INFO L933 BasicCegarLoop]: 125 mSDtfsCounter, 187 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-17 04:26:28,812 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [187 Valid, 150 Invalid, 627 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-17 04:26:28,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12051 states. [2021-12-17 04:26:28,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12051 to 8543. [2021-12-17 04:26:28,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8543 states, 8542 states have (on average 1.244088035588855) internal successors, (10627), 8542 states have internal predecessors, (10627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:26:28,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8543 states to 8543 states and 10627 transitions. [2021-12-17 04:26:28,964 INFO L78 Accepts]: Start accepts. Automaton has 8543 states and 10627 transitions. Word has length 310 [2021-12-17 04:26:28,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:26:28,964 INFO L470 AbstractCegarLoop]: Abstraction has 8543 states and 10627 transitions. [2021-12-17 04:26:28,965 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:26:28,965 INFO L276 IsEmpty]: Start isEmpty. Operand 8543 states and 10627 transitions. [2021-12-17 04:26:28,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2021-12-17 04:26:28,981 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:26:28,981 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 04:26:28,982 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-17 04:26:28,982 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:26:28,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:26:28,983 INFO L85 PathProgramCache]: Analyzing trace with hash 525833242, now seen corresponding path program 1 times [2021-12-17 04:26:28,983 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:26:28,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577415120] [2021-12-17 04:26:28,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:26:28,984 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:26:29,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:26:29,149 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2021-12-17 04:26:29,149 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:26:29,150 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577415120] [2021-12-17 04:26:29,150 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577415120] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:26:29,150 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 04:26:29,150 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-17 04:26:29,150 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651404895] [2021-12-17 04:26:29,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:26:29,151 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 04:26:29,151 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:26:29,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 04:26:29,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 04:26:29,152 INFO L87 Difference]: Start difference. First operand 8543 states and 10627 transitions. Second operand has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 2 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:26:29,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:26:29,805 INFO L93 Difference]: Finished difference Result 19842 states and 24881 transitions. [2021-12-17 04:26:29,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 04:26:29,806 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 2 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 389 [2021-12-17 04:26:29,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:26:29,827 INFO L225 Difference]: With dead ends: 19842 [2021-12-17 04:26:29,828 INFO L226 Difference]: Without dead ends: 11301 [2021-12-17 04:26:29,838 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 04:26:29,839 INFO L933 BasicCegarLoop]: 125 mSDtfsCounter, 78 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 625 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-17 04:26:29,839 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [78 Valid, 148 Invalid, 625 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 447 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-17 04:26:29,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11301 states. [2021-12-17 04:26:29,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11301 to 7801. [2021-12-17 04:26:29,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7801 states, 7800 states have (on average 1.2061538461538461) internal successors, (9408), 7800 states have internal predecessors, (9408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:26:29,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7801 states to 7801 states and 9408 transitions. [2021-12-17 04:26:29,962 INFO L78 Accepts]: Start accepts. Automaton has 7801 states and 9408 transitions. Word has length 389 [2021-12-17 04:26:29,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:26:29,962 INFO L470 AbstractCegarLoop]: Abstraction has 7801 states and 9408 transitions. [2021-12-17 04:26:29,963 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 2 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:26:29,963 INFO L276 IsEmpty]: Start isEmpty. Operand 7801 states and 9408 transitions. [2021-12-17 04:26:29,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2021-12-17 04:26:29,974 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:26:29,975 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 04:26:29,975 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-17 04:26:29,975 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:26:29,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:26:29,976 INFO L85 PathProgramCache]: Analyzing trace with hash 1148105623, now seen corresponding path program 1 times [2021-12-17 04:26:29,976 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:26:29,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411765123] [2021-12-17 04:26:29,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:26:29,977 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:26:30,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:26:30,125 INFO L134 CoverageAnalysis]: Checked inductivity of 424 backedges. 320 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2021-12-17 04:26:30,125 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:26:30,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411765123] [2021-12-17 04:26:30,125 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411765123] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:26:30,126 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 04:26:30,126 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 04:26:30,126 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016744] [2021-12-17 04:26:30,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:26:30,127 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-17 04:26:30,127 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:26:30,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-17 04:26:30,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-17 04:26:30,128 INFO L87 Difference]: Start difference. First operand 7801 states and 9408 transitions. Second operand has 4 states, 4 states have (on average 72.75) internal successors, (291), 4 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:26:31,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:26:31,323 INFO L93 Difference]: Finished difference Result 23362 states and 28069 transitions. [2021-12-17 04:26:31,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-17 04:26:31,323 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 72.75) internal successors, (291), 4 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 394 [2021-12-17 04:26:31,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:26:31,352 INFO L225 Difference]: With dead ends: 23362 [2021-12-17 04:26:31,353 INFO L226 Difference]: Without dead ends: 15563 [2021-12-17 04:26:31,363 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-17 04:26:31,364 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 302 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 1152 mSolverCounterSat, 205 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 1357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 205 IncrementalHoareTripleChecker+Valid, 1152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-17 04:26:31,364 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [302 Valid, 87 Invalid, 1357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [205 Valid, 1152 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-17 04:26:31,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15563 states. [2021-12-17 04:26:31,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15563 to 13347. [2021-12-17 04:26:31,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13347 states, 13346 states have (on average 1.1967630750786753) internal successors, (15972), 13346 states have internal predecessors, (15972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:26:31,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13347 states to 13347 states and 15972 transitions. [2021-12-17 04:26:31,607 INFO L78 Accepts]: Start accepts. Automaton has 13347 states and 15972 transitions. Word has length 394 [2021-12-17 04:26:31,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:26:31,608 INFO L470 AbstractCegarLoop]: Abstraction has 13347 states and 15972 transitions. [2021-12-17 04:26:31,608 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 72.75) internal successors, (291), 4 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:26:31,609 INFO L276 IsEmpty]: Start isEmpty. Operand 13347 states and 15972 transitions. [2021-12-17 04:26:31,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 515 [2021-12-17 04:26:31,626 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:26:31,626 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 04:26:31,626 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-17 04:26:31,627 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:26:31,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:26:31,627 INFO L85 PathProgramCache]: Analyzing trace with hash -395850802, now seen corresponding path program 1 times [2021-12-17 04:26:31,627 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:26:31,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982518757] [2021-12-17 04:26:31,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:26:31,628 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:26:31,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:26:31,827 INFO L134 CoverageAnalysis]: Checked inductivity of 737 backedges. 428 proven. 0 refuted. 0 times theorem prover too weak. 309 trivial. 0 not checked. [2021-12-17 04:26:31,828 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:26:31,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982518757] [2021-12-17 04:26:31,828 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982518757] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:26:31,828 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 04:26:31,828 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 04:26:31,829 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448740094] [2021-12-17 04:26:31,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:26:31,829 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 04:26:31,830 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:26:31,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 04:26:31,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 04:26:31,830 INFO L87 Difference]: Start difference. First operand 13347 states and 15972 transitions. Second operand has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:26:32,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:26:32,577 INFO L93 Difference]: Finished difference Result 26134 states and 31281 transitions. [2021-12-17 04:26:32,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 04:26:32,577 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 514 [2021-12-17 04:26:32,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:26:32,599 INFO L225 Difference]: With dead ends: 26134 [2021-12-17 04:26:32,599 INFO L226 Difference]: Without dead ends: 12789 [2021-12-17 04:26:32,611 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 04:26:32,612 INFO L933 BasicCegarLoop]: 293 mSDtfsCounter, 68 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 562 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 562 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-17 04:26:32,612 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [68 Valid, 312 Invalid, 643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 562 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-17 04:26:32,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12789 states. [2021-12-17 04:26:32,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12789 to 9649. [2021-12-17 04:26:32,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9649 states, 9648 states have (on average 1.1842868988391377) internal successors, (11426), 9648 states have internal predecessors, (11426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:26:32,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9649 states to 9649 states and 11426 transitions. [2021-12-17 04:26:32,734 INFO L78 Accepts]: Start accepts. Automaton has 9649 states and 11426 transitions. Word has length 514 [2021-12-17 04:26:32,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:26:32,734 INFO L470 AbstractCegarLoop]: Abstraction has 9649 states and 11426 transitions. [2021-12-17 04:26:32,735 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:26:32,735 INFO L276 IsEmpty]: Start isEmpty. Operand 9649 states and 11426 transitions. [2021-12-17 04:26:32,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 536 [2021-12-17 04:26:32,749 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:26:32,750 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 04:26:32,750 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-17 04:26:32,750 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:26:32,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:26:32,751 INFO L85 PathProgramCache]: Analyzing trace with hash -584826003, now seen corresponding path program 1 times [2021-12-17 04:26:32,751 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:26:32,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693875657] [2021-12-17 04:26:32,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:26:32,751 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:26:32,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:26:33,004 INFO L134 CoverageAnalysis]: Checked inductivity of 755 backedges. 559 proven. 0 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2021-12-17 04:26:33,004 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:26:33,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693875657] [2021-12-17 04:26:33,004 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693875657] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:26:33,005 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 04:26:33,005 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 04:26:33,005 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532872474] [2021-12-17 04:26:33,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:26:33,006 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-17 04:26:33,006 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:26:33,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-17 04:26:33,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-17 04:26:33,007 INFO L87 Difference]: Start difference. First operand 9649 states and 11426 transitions. Second operand has 4 states, 4 states have (on average 85.25) internal successors, (341), 4 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:26:34,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:26:34,121 INFO L93 Difference]: Finished difference Result 22812 states and 27047 transitions. [2021-12-17 04:26:34,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-17 04:26:34,122 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 85.25) internal successors, (341), 4 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 535 [2021-12-17 04:26:34,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:26:34,147 INFO L225 Difference]: With dead ends: 22812 [2021-12-17 04:26:34,148 INFO L226 Difference]: Without dead ends: 13165 [2021-12-17 04:26:34,158 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-17 04:26:34,159 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 301 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 1151 mSolverCounterSat, 206 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 1357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 206 IncrementalHoareTripleChecker+Valid, 1151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-17 04:26:34,159 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [301 Valid, 87 Invalid, 1357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [206 Valid, 1151 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-17 04:26:34,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13165 states. [2021-12-17 04:26:34,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13165 to 9464. [2021-12-17 04:26:34,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9464 states, 9463 states have (on average 1.1872556271795414) internal successors, (11235), 9463 states have internal predecessors, (11235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:26:34,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9464 states to 9464 states and 11235 transitions. [2021-12-17 04:26:34,308 INFO L78 Accepts]: Start accepts. Automaton has 9464 states and 11235 transitions. Word has length 535 [2021-12-17 04:26:34,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:26:34,309 INFO L470 AbstractCegarLoop]: Abstraction has 9464 states and 11235 transitions. [2021-12-17 04:26:34,309 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 85.25) internal successors, (341), 4 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:26:34,309 INFO L276 IsEmpty]: Start isEmpty. Operand 9464 states and 11235 transitions. [2021-12-17 04:26:34,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 562 [2021-12-17 04:26:34,324 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:26:34,324 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 04:26:34,325 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-17 04:26:34,325 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:26:34,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:26:34,326 INFO L85 PathProgramCache]: Analyzing trace with hash -861206840, now seen corresponding path program 1 times [2021-12-17 04:26:34,326 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:26:34,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514035929] [2021-12-17 04:26:34,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:26:34,326 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:26:34,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:26:34,532 INFO L134 CoverageAnalysis]: Checked inductivity of 829 backedges. 705 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2021-12-17 04:26:34,533 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:26:34,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514035929] [2021-12-17 04:26:34,533 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514035929] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:26:34,533 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 04:26:34,533 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 04:26:34,534 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560032988] [2021-12-17 04:26:34,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:26:34,534 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-17 04:26:34,535 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:26:34,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-17 04:26:34,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-17 04:26:34,535 INFO L87 Difference]: Start difference. First operand 9464 states and 11235 transitions. Second operand has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:26:35,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:26:35,618 INFO L93 Difference]: Finished difference Result 25570 states and 30440 transitions. [2021-12-17 04:26:35,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-17 04:26:35,619 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 561 [2021-12-17 04:26:35,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:26:35,647 INFO L225 Difference]: With dead ends: 25570 [2021-12-17 04:26:35,648 INFO L226 Difference]: Without dead ends: 16108 [2021-12-17 04:26:35,657 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-17 04:26:35,658 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 199 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 1086 mSolverCounterSat, 265 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 1351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 265 IncrementalHoareTripleChecker+Valid, 1086 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-17 04:26:35,658 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [199 Valid, 87 Invalid, 1351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [265 Valid, 1086 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-17 04:26:35,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16108 states. [2021-12-17 04:26:35,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16108 to 12600. [2021-12-17 04:26:35,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12600 states, 12599 states have (on average 1.1793793158187158) internal successors, (14859), 12599 states have internal predecessors, (14859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:26:35,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12600 states to 12600 states and 14859 transitions. [2021-12-17 04:26:35,827 INFO L78 Accepts]: Start accepts. Automaton has 12600 states and 14859 transitions. Word has length 561 [2021-12-17 04:26:35,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:26:35,828 INFO L470 AbstractCegarLoop]: Abstraction has 12600 states and 14859 transitions. [2021-12-17 04:26:35,828 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:26:35,829 INFO L276 IsEmpty]: Start isEmpty. Operand 12600 states and 14859 transitions. [2021-12-17 04:26:35,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 578 [2021-12-17 04:26:35,852 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:26:35,852 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 04:26:35,853 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-17 04:26:35,853 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:26:35,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:26:35,853 INFO L85 PathProgramCache]: Analyzing trace with hash 922624536, now seen corresponding path program 1 times [2021-12-17 04:26:35,853 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:26:35,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791556205] [2021-12-17 04:26:35,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:26:35,854 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:26:35,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:26:36,067 INFO L134 CoverageAnalysis]: Checked inductivity of 814 backedges. 637 proven. 0 refuted. 0 times theorem prover too weak. 177 trivial. 0 not checked. [2021-12-17 04:26:36,068 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:26:36,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791556205] [2021-12-17 04:26:36,069 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791556205] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:26:36,070 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 04:26:36,070 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 04:26:36,070 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121133536] [2021-12-17 04:26:36,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:26:36,071 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 04:26:36,071 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:26:36,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 04:26:36,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 04:26:36,072 INFO L87 Difference]: Start difference. First operand 12600 states and 14859 transitions. Second operand has 3 states, 3 states have (on average 134.0) internal successors, (402), 3 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:26:36,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:26:36,643 INFO L93 Difference]: Finished difference Result 25012 states and 29512 transitions. [2021-12-17 04:26:36,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 04:26:36,643 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 134.0) internal successors, (402), 3 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 577 [2021-12-17 04:26:36,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:26:36,657 INFO L225 Difference]: With dead ends: 25012 [2021-12-17 04:26:36,658 INFO L226 Difference]: Without dead ends: 12414 [2021-12-17 04:26:36,667 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 04:26:36,668 INFO L933 BasicCegarLoop]: 281 mSDtfsCounter, 147 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 548 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 301 SdHoareTripleChecker+Invalid, 585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-17 04:26:36,669 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 301 Invalid, 585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 548 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-17 04:26:36,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12414 states. [2021-12-17 04:26:36,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12414 to 11862. [2021-12-17 04:26:36,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11862 states, 11861 states have (on average 1.1745215411853975) internal successors, (13931), 11861 states have internal predecessors, (13931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:26:36,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11862 states to 11862 states and 13931 transitions. [2021-12-17 04:26:36,864 INFO L78 Accepts]: Start accepts. Automaton has 11862 states and 13931 transitions. Word has length 577 [2021-12-17 04:26:36,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:26:36,865 INFO L470 AbstractCegarLoop]: Abstraction has 11862 states and 13931 transitions. [2021-12-17 04:26:36,865 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 134.0) internal successors, (402), 3 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:26:36,865 INFO L276 IsEmpty]: Start isEmpty. Operand 11862 states and 13931 transitions. [2021-12-17 04:26:36,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 603 [2021-12-17 04:26:36,885 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:26:36,887 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 04:26:36,887 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-17 04:26:36,887 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:26:36,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:26:36,888 INFO L85 PathProgramCache]: Analyzing trace with hash 802140522, now seen corresponding path program 1 times [2021-12-17 04:26:36,888 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:26:36,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891043363] [2021-12-17 04:26:36,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:26:36,889 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:26:36,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:26:37,082 INFO L134 CoverageAnalysis]: Checked inductivity of 934 backedges. 600 proven. 0 refuted. 0 times theorem prover too weak. 334 trivial. 0 not checked. [2021-12-17 04:26:37,082 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:26:37,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891043363] [2021-12-17 04:26:37,082 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891043363] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:26:37,083 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 04:26:37,083 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-17 04:26:37,083 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100475456] [2021-12-17 04:26:37,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:26:37,084 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 04:26:37,084 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:26:37,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 04:26:37,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 04:26:37,085 INFO L87 Difference]: Start difference. First operand 11862 states and 13931 transitions. Second operand has 3 states, 3 states have (on average 102.0) internal successors, (306), 2 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:26:37,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:26:37,470 INFO L93 Difference]: Finished difference Result 23713 states and 27851 transitions. [2021-12-17 04:26:37,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 04:26:37,470 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 102.0) internal successors, (306), 2 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 602 [2021-12-17 04:26:37,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:26:37,480 INFO L225 Difference]: With dead ends: 23713 [2021-12-17 04:26:37,481 INFO L226 Difference]: Without dead ends: 11853 [2021-12-17 04:26:37,488 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 04:26:37,489 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 186 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-17 04:26:37,490 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [186 Valid, 38 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-17 04:26:37,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11853 states. [2021-12-17 04:26:37,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11853 to 11849. [2021-12-17 04:26:37,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11849 states, 11848 states have (on average 1.1737002025658338) internal successors, (13906), 11848 states have internal predecessors, (13906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:26:37,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11849 states to 11849 states and 13906 transitions. [2021-12-17 04:26:37,624 INFO L78 Accepts]: Start accepts. Automaton has 11849 states and 13906 transitions. Word has length 602 [2021-12-17 04:26:37,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:26:37,624 INFO L470 AbstractCegarLoop]: Abstraction has 11849 states and 13906 transitions. [2021-12-17 04:26:37,625 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 102.0) internal successors, (306), 2 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:26:37,625 INFO L276 IsEmpty]: Start isEmpty. Operand 11849 states and 13906 transitions. [2021-12-17 04:26:37,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 618 [2021-12-17 04:26:37,638 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:26:37,639 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 04:26:37,639 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-17 04:26:37,639 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:26:37,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:26:37,640 INFO L85 PathProgramCache]: Analyzing trace with hash 1235396714, now seen corresponding path program 1 times [2021-12-17 04:26:37,640 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:26:37,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121325736] [2021-12-17 04:26:37,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:26:37,641 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:26:37,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:26:37,870 INFO L134 CoverageAnalysis]: Checked inductivity of 1205 backedges. 1050 proven. 0 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2021-12-17 04:26:37,870 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:26:37,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121325736] [2021-12-17 04:26:37,870 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121325736] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:26:37,871 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 04:26:37,871 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 04:26:37,871 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672019175] [2021-12-17 04:26:37,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:26:37,872 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-17 04:26:37,872 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:26:37,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-17 04:26:37,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-17 04:26:37,873 INFO L87 Difference]: Start difference. First operand 11849 states and 13906 transitions. Second operand has 4 states, 4 states have (on average 124.75) internal successors, (499), 4 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:26:38,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:26:38,772 INFO L93 Difference]: Finished difference Result 30727 states and 35991 transitions. [2021-12-17 04:26:38,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-17 04:26:38,775 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 124.75) internal successors, (499), 4 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 617 [2021-12-17 04:26:38,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:26:38,794 INFO L225 Difference]: With dead ends: 30727 [2021-12-17 04:26:38,795 INFO L226 Difference]: Without dead ends: 18880 [2021-12-17 04:26:38,806 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-17 04:26:38,807 INFO L933 BasicCegarLoop]: 106 mSDtfsCounter, 194 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 1020 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 1140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 1020 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-17 04:26:38,807 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [194 Valid, 142 Invalid, 1140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 1020 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-17 04:26:38,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18880 states. [2021-12-17 04:26:38,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18880 to 15920. [2021-12-17 04:26:38,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15920 states, 15919 states have (on average 1.1625102079276337) internal successors, (18506), 15919 states have internal predecessors, (18506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:26:39,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15920 states to 15920 states and 18506 transitions. [2021-12-17 04:26:39,074 INFO L78 Accepts]: Start accepts. Automaton has 15920 states and 18506 transitions. Word has length 617 [2021-12-17 04:26:39,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:26:39,074 INFO L470 AbstractCegarLoop]: Abstraction has 15920 states and 18506 transitions. [2021-12-17 04:26:39,074 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 124.75) internal successors, (499), 4 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:26:39,074 INFO L276 IsEmpty]: Start isEmpty. Operand 15920 states and 18506 transitions. [2021-12-17 04:26:39,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 627 [2021-12-17 04:26:39,090 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:26:39,090 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 04:26:39,090 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-17 04:26:39,090 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:26:39,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:26:39,091 INFO L85 PathProgramCache]: Analyzing trace with hash 1165858962, now seen corresponding path program 1 times [2021-12-17 04:26:39,091 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:26:39,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3781067] [2021-12-17 04:26:39,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:26:39,092 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:26:39,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:26:39,393 INFO L134 CoverageAnalysis]: Checked inductivity of 934 backedges. 621 proven. 154 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2021-12-17 04:26:39,394 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:26:39,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3781067] [2021-12-17 04:26:39,394 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3781067] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 04:26:39,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1872545417] [2021-12-17 04:26:39,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:26:39,395 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 04:26:39,395 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 04:26:39,400 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-17 04:26:39,463 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-17 04:26:39,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:26:39,621 INFO L263 TraceCheckSpWp]: Trace formula consists of 801 conjuncts, 11 conjunts are in the unsatisfiable core [2021-12-17 04:26:39,655 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 04:26:42,118 INFO L134 CoverageAnalysis]: Checked inductivity of 934 backedges. 621 proven. 154 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2021-12-17 04:26:42,119 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-17 04:26:44,471 INFO L134 CoverageAnalysis]: Checked inductivity of 934 backedges. 621 proven. 154 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2021-12-17 04:26:44,472 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1872545417] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-17 04:26:44,472 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-17 04:26:44,473 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 4 [2021-12-17 04:26:44,473 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631770403] [2021-12-17 04:26:44,473 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-17 04:26:44,474 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-17 04:26:44,475 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:26:44,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-17 04:26:44,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-17 04:26:44,475 INFO L87 Difference]: Start difference. First operand 15920 states and 18506 transitions. Second operand has 5 states, 5 states have (on average 93.8) internal successors, (469), 4 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:26:45,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:26:45,668 INFO L93 Difference]: Finished difference Result 35632 states and 41383 transitions. [2021-12-17 04:26:45,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-17 04:26:45,668 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 93.8) internal successors, (469), 4 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 626 [2021-12-17 04:26:45,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:26:45,688 INFO L225 Difference]: With dead ends: 35632 [2021-12-17 04:26:45,688 INFO L226 Difference]: Without dead ends: 18978 [2021-12-17 04:26:45,698 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1256 GetRequests, 1249 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-12-17 04:26:45,699 INFO L933 BasicCegarLoop]: 28 mSDtfsCounter, 386 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 1432 mSolverCounterSat, 323 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 386 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 1755 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 323 IncrementalHoareTripleChecker+Valid, 1432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-17 04:26:45,699 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [386 Valid, 61 Invalid, 1755 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [323 Valid, 1432 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-17 04:26:45,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18978 states. [2021-12-17 04:26:45,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18978 to 18302. [2021-12-17 04:26:45,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18302 states, 18301 states have (on average 1.1393366482705862) internal successors, (20851), 18301 states have internal predecessors, (20851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:26:45,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18302 states to 18302 states and 20851 transitions. [2021-12-17 04:26:45,963 INFO L78 Accepts]: Start accepts. Automaton has 18302 states and 20851 transitions. Word has length 626 [2021-12-17 04:26:45,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:26:45,963 INFO L470 AbstractCegarLoop]: Abstraction has 18302 states and 20851 transitions. [2021-12-17 04:26:45,963 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 93.8) internal successors, (469), 4 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:26:45,964 INFO L276 IsEmpty]: Start isEmpty. Operand 18302 states and 20851 transitions. [2021-12-17 04:26:45,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 628 [2021-12-17 04:26:45,983 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:26:45,983 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 04:26:46,007 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-17 04:26:46,207 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 04:26:46,208 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:26:46,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:26:46,208 INFO L85 PathProgramCache]: Analyzing trace with hash -519996029, now seen corresponding path program 1 times [2021-12-17 04:26:46,208 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:26:46,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649544406] [2021-12-17 04:26:46,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:26:46,209 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:26:46,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:26:46,430 INFO L134 CoverageAnalysis]: Checked inductivity of 1229 backedges. 838 proven. 0 refuted. 0 times theorem prover too weak. 391 trivial. 0 not checked. [2021-12-17 04:26:46,430 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:26:46,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649544406] [2021-12-17 04:26:46,431 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649544406] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:26:46,431 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 04:26:46,431 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 04:26:46,431 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813710193] [2021-12-17 04:26:46,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:26:46,432 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-17 04:26:46,432 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:26:46,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-17 04:26:46,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-17 04:26:46,433 INFO L87 Difference]: Start difference. First operand 18302 states and 20851 transitions. Second operand has 4 states, 4 states have (on average 98.5) internal successors, (394), 3 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:26:47,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:26:47,527 INFO L93 Difference]: Finished difference Result 40474 states and 46062 transitions. [2021-12-17 04:26:47,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-17 04:26:47,528 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 98.5) internal successors, (394), 3 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 627 [2021-12-17 04:26:47,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:26:47,556 INFO L225 Difference]: With dead ends: 40474 [2021-12-17 04:26:47,557 INFO L226 Difference]: Without dead ends: 22540 [2021-12-17 04:26:47,571 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-17 04:26:47,572 INFO L933 BasicCegarLoop]: 58 mSDtfsCounter, 201 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 996 mSolverCounterSat, 292 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 1288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 292 IncrementalHoareTripleChecker+Valid, 996 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-17 04:26:47,572 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [201 Valid, 87 Invalid, 1288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [292 Valid, 996 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-17 04:26:47,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22540 states. [2021-12-17 04:26:47,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22540 to 21058. [2021-12-17 04:26:47,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21058 states, 21057 states have (on average 1.1233319086289595) internal successors, (23654), 21057 states have internal predecessors, (23654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:26:47,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21058 states to 21058 states and 23654 transitions. [2021-12-17 04:26:47,782 INFO L78 Accepts]: Start accepts. Automaton has 21058 states and 23654 transitions. Word has length 627 [2021-12-17 04:26:47,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:26:47,782 INFO L470 AbstractCegarLoop]: Abstraction has 21058 states and 23654 transitions. [2021-12-17 04:26:47,783 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 98.5) internal successors, (394), 3 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:26:47,783 INFO L276 IsEmpty]: Start isEmpty. Operand 21058 states and 23654 transitions. [2021-12-17 04:26:47,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 633 [2021-12-17 04:26:47,802 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:26:47,802 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 04:26:47,802 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-17 04:26:47,802 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:26:47,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:26:47,803 INFO L85 PathProgramCache]: Analyzing trace with hash 1582114301, now seen corresponding path program 1 times [2021-12-17 04:26:47,803 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:26:47,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264867792] [2021-12-17 04:26:47,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:26:47,804 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:26:47,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:26:48,045 INFO L134 CoverageAnalysis]: Checked inductivity of 1161 backedges. 604 proven. 0 refuted. 0 times theorem prover too weak. 557 trivial. 0 not checked. [2021-12-17 04:26:48,046 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:26:48,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264867792] [2021-12-17 04:26:48,046 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1264867792] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:26:48,046 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 04:26:48,046 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 04:26:48,046 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481842496] [2021-12-17 04:26:48,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:26:48,048 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 04:26:48,049 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:26:48,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 04:26:48,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 04:26:48,049 INFO L87 Difference]: Start difference. First operand 21058 states and 23654 transitions. Second operand has 3 states, 3 states have (on average 112.0) internal successors, (336), 3 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:26:48,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:26:48,721 INFO L93 Difference]: Finished difference Result 42123 states and 47421 transitions. [2021-12-17 04:26:48,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 04:26:48,722 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 112.0) internal successors, (336), 3 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 632 [2021-12-17 04:26:48,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:26:48,743 INFO L225 Difference]: With dead ends: 42123 [2021-12-17 04:26:48,743 INFO L226 Difference]: Without dead ends: 21987 [2021-12-17 04:26:48,755 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 04:26:48,756 INFO L933 BasicCegarLoop]: 327 mSDtfsCounter, 31 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 543 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 612 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 543 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-17 04:26:48,756 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 345 Invalid, 612 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 543 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-17 04:26:48,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21987 states. [2021-12-17 04:26:48,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21987 to 21054. [2021-12-17 04:26:48,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21054 states, 21053 states have (on average 1.098275780173847) internal successors, (23122), 21053 states have internal predecessors, (23122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:26:48,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21054 states to 21054 states and 23122 transitions. [2021-12-17 04:26:48,945 INFO L78 Accepts]: Start accepts. Automaton has 21054 states and 23122 transitions. Word has length 632 [2021-12-17 04:26:48,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:26:48,946 INFO L470 AbstractCegarLoop]: Abstraction has 21054 states and 23122 transitions. [2021-12-17 04:26:48,946 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 112.0) internal successors, (336), 3 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:26:48,946 INFO L276 IsEmpty]: Start isEmpty. Operand 21054 states and 23122 transitions. [2021-12-17 04:26:48,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 698 [2021-12-17 04:26:48,969 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:26:48,969 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 04:26:48,970 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-12-17 04:26:48,970 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:26:48,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:26:48,970 INFO L85 PathProgramCache]: Analyzing trace with hash -1072353647, now seen corresponding path program 1 times [2021-12-17 04:26:48,971 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:26:48,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184748405] [2021-12-17 04:26:48,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:26:48,971 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:26:49,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:26:49,233 INFO L134 CoverageAnalysis]: Checked inductivity of 1599 backedges. 1040 proven. 0 refuted. 0 times theorem prover too weak. 559 trivial. 0 not checked. [2021-12-17 04:26:49,233 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:26:49,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184748405] [2021-12-17 04:26:49,233 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184748405] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:26:49,234 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 04:26:49,234 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 04:26:49,235 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975956063] [2021-12-17 04:26:49,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:26:49,236 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 04:26:49,236 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:26:49,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 04:26:49,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 04:26:49,237 INFO L87 Difference]: Start difference. First operand 21054 states and 23122 transitions. Second operand has 3 states, 3 states have (on average 126.66666666666667) internal successors, (380), 3 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:26:49,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:26:49,919 INFO L93 Difference]: Finished difference Result 41732 states and 45857 transitions. [2021-12-17 04:26:49,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 04:26:49,920 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 126.66666666666667) internal successors, (380), 3 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 697 [2021-12-17 04:26:49,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:26:49,939 INFO L225 Difference]: With dead ends: 41732 [2021-12-17 04:26:49,940 INFO L226 Difference]: Without dead ends: 21602 [2021-12-17 04:26:49,953 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 04:26:49,954 INFO L933 BasicCegarLoop]: 110 mSDtfsCounter, 102 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 518 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 518 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-17 04:26:49,954 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 129 Invalid, 559 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 518 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-17 04:26:49,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21602 states. [2021-12-17 04:26:50,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21602 to 20312. [2021-12-17 04:26:50,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20312 states, 20311 states have (on average 1.093200728669194) internal successors, (22204), 20311 states have internal predecessors, (22204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:26:50,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20312 states to 20312 states and 22204 transitions. [2021-12-17 04:26:50,177 INFO L78 Accepts]: Start accepts. Automaton has 20312 states and 22204 transitions. Word has length 697 [2021-12-17 04:26:50,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:26:50,178 INFO L470 AbstractCegarLoop]: Abstraction has 20312 states and 22204 transitions. [2021-12-17 04:26:50,178 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 126.66666666666667) internal successors, (380), 3 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:26:50,178 INFO L276 IsEmpty]: Start isEmpty. Operand 20312 states and 22204 transitions. [2021-12-17 04:26:50,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 716 [2021-12-17 04:26:50,193 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:26:50,193 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 04:26:50,193 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-12-17 04:26:50,194 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:26:50,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:26:50,194 INFO L85 PathProgramCache]: Analyzing trace with hash 491490049, now seen corresponding path program 1 times [2021-12-17 04:26:50,194 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:26:50,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208305991] [2021-12-17 04:26:50,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:26:50,195 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:26:50,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:26:50,378 INFO L134 CoverageAnalysis]: Checked inductivity of 1677 backedges. 1002 proven. 0 refuted. 0 times theorem prover too weak. 675 trivial. 0 not checked. [2021-12-17 04:26:50,379 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:26:50,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208305991] [2021-12-17 04:26:50,379 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208305991] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:26:50,379 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 04:26:50,380 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-17 04:26:50,380 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122616384] [2021-12-17 04:26:50,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:26:50,381 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 04:26:50,381 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:26:50,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 04:26:50,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 04:26:50,381 INFO L87 Difference]: Start difference. First operand 20312 states and 22204 transitions. Second operand has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:26:50,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:26:50,931 INFO L93 Difference]: Finished difference Result 38956 states and 42585 transitions. [2021-12-17 04:26:50,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 04:26:50,931 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 715 [2021-12-17 04:26:50,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:26:50,950 INFO L225 Difference]: With dead ends: 38956 [2021-12-17 04:26:50,950 INFO L226 Difference]: Without dead ends: 19568 [2021-12-17 04:26:50,962 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-17 04:26:50,963 INFO L933 BasicCegarLoop]: 294 mSDtfsCounter, 189 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-17 04:26:50,963 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [189 Valid, 310 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 478 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-17 04:26:50,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19568 states. [2021-12-17 04:26:51,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19568 to 17534. [2021-12-17 04:26:51,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17534 states, 17533 states have (on average 1.0811612388068215) internal successors, (18956), 17533 states have internal predecessors, (18956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:26:51,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17534 states to 17534 states and 18956 transitions. [2021-12-17 04:26:51,133 INFO L78 Accepts]: Start accepts. Automaton has 17534 states and 18956 transitions. Word has length 715 [2021-12-17 04:26:51,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:26:51,134 INFO L470 AbstractCegarLoop]: Abstraction has 17534 states and 18956 transitions. [2021-12-17 04:26:51,134 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:26:51,134 INFO L276 IsEmpty]: Start isEmpty. Operand 17534 states and 18956 transitions. [2021-12-17 04:26:51,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 721 [2021-12-17 04:26:51,149 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:26:51,149 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 04:26:51,149 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-12-17 04:26:51,149 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:26:51,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:26:51,150 INFO L85 PathProgramCache]: Analyzing trace with hash -1182775230, now seen corresponding path program 1 times [2021-12-17 04:26:51,150 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:26:51,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415054787] [2021-12-17 04:26:51,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:26:51,151 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:26:51,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:26:51,442 INFO L134 CoverageAnalysis]: Checked inductivity of 1317 backedges. 875 proven. 163 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2021-12-17 04:26:51,443 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:26:51,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415054787] [2021-12-17 04:26:51,443 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415054787] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 04:26:51,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [818282073] [2021-12-17 04:26:51,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:26:51,444 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 04:26:51,444 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 04:26:51,447 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-17 04:26:51,447 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-17 04:26:51,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:26:51,652 INFO L263 TraceCheckSpWp]: Trace formula consists of 921 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-17 04:26:51,658 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 04:26:52,460 INFO L134 CoverageAnalysis]: Checked inductivity of 1317 backedges. 882 proven. 0 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2021-12-17 04:26:52,461 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 04:26:52,461 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [818282073] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:26:52,461 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 04:26:52,461 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2021-12-17 04:26:52,462 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003042513] [2021-12-17 04:26:52,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:26:52,462 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 04:26:52,463 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:26:52,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 04:26:52,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-17 04:26:52,463 INFO L87 Difference]: Start difference. First operand 17534 states and 18956 transitions. Second operand has 3 states, 3 states have (on average 137.33333333333334) internal successors, (412), 3 states have internal predecessors, (412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:26:52,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:26:52,963 INFO L93 Difference]: Finished difference Result 35065 states and 37900 transitions. [2021-12-17 04:26:52,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 04:26:52,963 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 137.33333333333334) internal successors, (412), 3 states have internal predecessors, (412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 720 [2021-12-17 04:26:52,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:26:52,979 INFO L225 Difference]: With dead ends: 35065 [2021-12-17 04:26:52,979 INFO L226 Difference]: Without dead ends: 17717 [2021-12-17 04:26:52,989 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 724 GetRequests, 719 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-17 04:26:52,990 INFO L933 BasicCegarLoop]: 302 mSDtfsCounter, 104 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-17 04:26:52,990 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 316 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 489 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-17 04:26:53,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17717 states. [2021-12-17 04:26:53,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17717 to 17532. [2021-12-17 04:26:53,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17532 states, 17531 states have (on average 1.0720438081113457) internal successors, (18794), 17531 states have internal predecessors, (18794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:26:53,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17532 states to 17532 states and 18794 transitions. [2021-12-17 04:26:53,146 INFO L78 Accepts]: Start accepts. Automaton has 17532 states and 18794 transitions. Word has length 720 [2021-12-17 04:26:53,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:26:53,147 INFO L470 AbstractCegarLoop]: Abstraction has 17532 states and 18794 transitions. [2021-12-17 04:26:53,147 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 137.33333333333334) internal successors, (412), 3 states have internal predecessors, (412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:26:53,147 INFO L276 IsEmpty]: Start isEmpty. Operand 17532 states and 18794 transitions. [2021-12-17 04:26:53,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 752 [2021-12-17 04:26:53,162 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:26:53,163 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 04:26:53,181 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-17 04:26:53,364 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2021-12-17 04:26:53,364 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:26:53,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:26:53,365 INFO L85 PathProgramCache]: Analyzing trace with hash -1687943336, now seen corresponding path program 1 times [2021-12-17 04:26:53,365 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:26:53,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756250963] [2021-12-17 04:26:53,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:26:53,365 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:26:53,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:26:53,633 INFO L134 CoverageAnalysis]: Checked inductivity of 1666 backedges. 1112 proven. 393 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2021-12-17 04:26:53,634 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:26:53,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756250963] [2021-12-17 04:26:53,634 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756250963] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-17 04:26:53,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1694345734] [2021-12-17 04:26:53,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:26:53,635 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 04:26:53,635 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-17 04:26:53,636 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-17 04:26:53,638 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-17 04:26:53,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:26:53,841 INFO L263 TraceCheckSpWp]: Trace formula consists of 986 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-17 04:26:53,848 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-17 04:26:54,909 INFO L134 CoverageAnalysis]: Checked inductivity of 1666 backedges. 1226 proven. 0 refuted. 0 times theorem prover too weak. 440 trivial. 0 not checked. [2021-12-17 04:26:54,909 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-17 04:26:54,909 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1694345734] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:26:54,909 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-17 04:26:54,909 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2021-12-17 04:26:54,910 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082275425] [2021-12-17 04:26:54,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:26:54,910 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-17 04:26:54,910 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:26:54,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-17 04:26:54,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-12-17 04:26:54,911 INFO L87 Difference]: Start difference. First operand 17532 states and 18794 transitions. Second operand has 3 states, 3 states have (on average 142.33333333333334) internal successors, (427), 3 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:26:55,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:26:55,399 INFO L93 Difference]: Finished difference Result 34522 states and 37066 transitions. [2021-12-17 04:26:55,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-17 04:26:55,400 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 142.33333333333334) internal successors, (427), 3 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 751 [2021-12-17 04:26:55,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:26:55,417 INFO L225 Difference]: With dead ends: 34522 [2021-12-17 04:26:55,417 INFO L226 Difference]: Without dead ends: 18098 [2021-12-17 04:26:55,426 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 756 GetRequests, 751 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-12-17 04:26:55,427 INFO L933 BasicCegarLoop]: 283 mSDtfsCounter, 87 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-17 04:26:55,427 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [87 Valid, 297 Invalid, 494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 485 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-17 04:26:55,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18098 states. [2021-12-17 04:26:55,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18098 to 17720. [2021-12-17 04:26:55,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17720 states, 17719 states have (on average 1.0716180371352786) internal successors, (18988), 17719 states have internal predecessors, (18988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:26:55,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17720 states to 17720 states and 18988 transitions. [2021-12-17 04:26:55,633 INFO L78 Accepts]: Start accepts. Automaton has 17720 states and 18988 transitions. Word has length 751 [2021-12-17 04:26:55,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:26:55,634 INFO L470 AbstractCegarLoop]: Abstraction has 17720 states and 18988 transitions. [2021-12-17 04:26:55,634 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 142.33333333333334) internal successors, (427), 3 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:26:55,634 INFO L276 IsEmpty]: Start isEmpty. Operand 17720 states and 18988 transitions. [2021-12-17 04:26:55,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 794 [2021-12-17 04:26:55,655 INFO L506 BasicCegarLoop]: Found error trace [2021-12-17 04:26:55,655 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 04:26:55,679 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-17 04:26:55,875 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-17 04:26:55,876 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-17 04:26:55,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-17 04:26:55,876 INFO L85 PathProgramCache]: Analyzing trace with hash 1357005314, now seen corresponding path program 1 times [2021-12-17 04:26:55,876 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-17 04:26:55,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973159048] [2021-12-17 04:26:55,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-17 04:26:55,877 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-17 04:26:55,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-17 04:26:56,141 INFO L134 CoverageAnalysis]: Checked inductivity of 1806 backedges. 1521 proven. 0 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked. [2021-12-17 04:26:56,142 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-17 04:26:56,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973159048] [2021-12-17 04:26:56,142 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973159048] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-17 04:26:56,142 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-17 04:26:56,142 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-17 04:26:56,143 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674374645] [2021-12-17 04:26:56,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-17 04:26:56,143 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-17 04:26:56,143 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-17 04:26:56,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-17 04:26:56,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-17 04:26:56,145 INFO L87 Difference]: Start difference. First operand 17720 states and 18988 transitions. Second operand has 4 states, 4 states have (on average 136.5) internal successors, (546), 4 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:26:56,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-17 04:26:56,898 INFO L93 Difference]: Finished difference Result 32122 states and 34414 transitions. [2021-12-17 04:26:56,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-17 04:26:56,899 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 136.5) internal successors, (546), 4 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 793 [2021-12-17 04:26:56,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-17 04:26:56,899 INFO L225 Difference]: With dead ends: 32122 [2021-12-17 04:26:56,899 INFO L226 Difference]: Without dead ends: 0 [2021-12-17 04:26:56,909 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-17 04:26:56,909 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 188 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 710 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 782 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 710 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-17 04:26:56,910 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [188 Valid, 98 Invalid, 782 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 710 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-17 04:26:56,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-17 04:26:56,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-17 04:26:56,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:26:56,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-17 04:26:56,911 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 793 [2021-12-17 04:26:56,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-17 04:26:56,911 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-17 04:26:56,911 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 136.5) internal successors, (546), 4 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-17 04:26:56,912 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-17 04:26:56,912 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-17 04:26:56,914 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-17 04:26:56,914 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-12-17 04:26:56,916 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-17 04:28:49,396 WARN L227 SmtUtils]: Spent 1.87m on a formula simplification. DAG size of input: 532 DAG size of output: 499 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-12-17 04:30:41,484 WARN L227 SmtUtils]: Spent 1.87m on a formula simplification. DAG size of input: 532 DAG size of output: 499 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2021-12-17 04:30:46,753 INFO L858 garLoopResultBuilder]: For program point L498(lines 498 509) no Hoare annotation was computed. [2021-12-17 04:30:46,753 INFO L858 garLoopResultBuilder]: For program point L432(lines 432 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,753 INFO L858 garLoopResultBuilder]: For program point L498-2(lines 498 509) no Hoare annotation was computed. [2021-12-17 04:30:46,753 INFO L858 garLoopResultBuilder]: For program point L168-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:30:46,753 INFO L858 garLoopResultBuilder]: For program point L102-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:30:46,753 INFO L858 garLoopResultBuilder]: For program point L36-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:30:46,753 INFO L858 garLoopResultBuilder]: For program point L1027(lines 1027 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,753 INFO L858 garLoopResultBuilder]: For program point L631(lines 631 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,753 INFO L858 garLoopResultBuilder]: For program point L565(lines 565 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,753 INFO L858 garLoopResultBuilder]: For program point L169(line 169) no Hoare annotation was computed. [2021-12-17 04:30:46,753 INFO L858 garLoopResultBuilder]: For program point L103(line 103) no Hoare annotation was computed. [2021-12-17 04:30:46,754 INFO L858 garLoopResultBuilder]: For program point L37(line 37) no Hoare annotation was computed. [2021-12-17 04:30:46,754 INFO L858 garLoopResultBuilder]: For program point L896(lines 896 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,754 INFO L858 garLoopResultBuilder]: For program point L698(lines 698 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,754 INFO L858 garLoopResultBuilder]: For program point L368(lines 368 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,754 INFO L858 garLoopResultBuilder]: For program point L963(lines 963 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,754 INFO L858 garLoopResultBuilder]: For program point L237(lines 237 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,754 INFO L858 garLoopResultBuilder]: For program point L171-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:30:46,754 INFO L858 garLoopResultBuilder]: For program point L105-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:30:46,755 INFO L858 garLoopResultBuilder]: For program point L39-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:30:46,755 INFO L858 garLoopResultBuilder]: For program point L832(lines 832 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,755 INFO L858 garLoopResultBuilder]: For program point L304(lines 304 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,755 INFO L858 garLoopResultBuilder]: For program point L172(line 172) no Hoare annotation was computed. [2021-12-17 04:30:46,755 INFO L858 garLoopResultBuilder]: For program point L106(line 106) no Hoare annotation was computed. [2021-12-17 04:30:46,755 INFO L858 garLoopResultBuilder]: For program point L40(line 40) no Hoare annotation was computed. [2021-12-17 04:30:46,755 INFO L858 garLoopResultBuilder]: For program point L767(lines 767 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,756 INFO L858 garLoopResultBuilder]: For program point L768(lines 768 778) no Hoare annotation was computed. [2021-12-17 04:30:46,756 INFO L858 garLoopResultBuilder]: For program point L768-2(lines 768 778) no Hoare annotation was computed. [2021-12-17 04:30:46,756 INFO L858 garLoopResultBuilder]: For program point L174-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:30:46,756 INFO L858 garLoopResultBuilder]: For program point L108-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:30:46,756 INFO L858 garLoopResultBuilder]: For program point L42-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:30:46,756 INFO L858 garLoopResultBuilder]: For program point L835(lines 835 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,756 INFO L858 garLoopResultBuilder]: For program point L571(lines 571 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,756 INFO L858 garLoopResultBuilder]: For program point L439(lines 439 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,757 INFO L858 garLoopResultBuilder]: For program point L175(line 175) no Hoare annotation was computed. [2021-12-17 04:30:46,757 INFO L858 garLoopResultBuilder]: For program point L109(line 109) no Hoare annotation was computed. [2021-12-17 04:30:46,757 INFO L858 garLoopResultBuilder]: For program point L43(line 43) no Hoare annotation was computed. [2021-12-17 04:30:46,757 INFO L858 garLoopResultBuilder]: For program point L968(lines 968 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,757 INFO L858 garLoopResultBuilder]: For program point L704(lines 704 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,757 INFO L858 garLoopResultBuilder]: For program point L638(lines 638 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,758 INFO L854 garLoopResultBuilder]: At program point L1035(lines 32 1036) the Hoare annotation is: (let ((.cse23 (<= 10 ~a25~0))) (let ((.cse22 (<= 312 ~a23~0)) (.cse9 (< 306 ~a23~0)) (.cse26 (and .cse23 (<= 308 ~a23~0))) (.cse4 (<= ~a25~0 10)) (.cse14 (= ~a25~0 12)) (.cse11 (= ~a4~0 1))) (let ((.cse15 (let ((.cse27 (<= ~a29~0 130))) (or (and .cse4 .cse27 .cse11) (and .cse14 .cse27 .cse11)))) (.cse19 (or .cse22 (and .cse23 .cse9) .cse26)) (.cse7 (<= ~a29~0 310110)) (.cse18 (<= ~a23~0 312)) (.cse16 (<= ~a23~0 137)) (.cse8 (<= 261 ~a29~0)) (.cse21 (= ~a25~0 11)) (.cse10 (<= ~a23~0 600000)) (.cse17 (<= (+ ~a29~0 320173) 0)) (.cse0 (= 0 ~a4~0)) (.cse2 (<= ~a29~0 140)) (.cse3 (<= ~a23~0 138)) (.cse24 (< 0 (+ ~a23~0 43))) (.cse20 (<= 13 ~a25~0)) (.cse13 (or (<= ~a23~0 306) (< 140 ~a29~0))) (.cse25 (= ~a25~0 9)) (.cse1 (<= ~a29~0 276)) (.cse12 (<= 130 ~a29~0)) (.cse5 (= ~a3~0 1)) (.cse6 (= ~a8~0 15))) (or (and .cse0 .cse1 .cse2 .cse3 (<= (+ ~a23~0 212) 0) .cse4 .cse5 .cse6) (and .cse7 .cse8 .cse9 .cse5 .cse10 .cse6 .cse11) (and .cse1 .cse12 .cse4 .cse5 (<= ~a29~0 245) .cse11 .cse6 .cse13) (and .cse0 .cse1 .cse14 .cse12 .cse5 .cse6 .cse13) (and .cse15 .cse16) (and .cse3 .cse5 .cse11 .cse6) (and .cse0 .cse14 .cse17 .cse5 .cse6) (and .cse15 .cse18 .cse12 .cse5 .cse6) (and .cse19 .cse20 .cse5 .cse10 .cse6 .cse11) (and .cse0 .cse1 .cse17 .cse3 .cse4 .cse5 .cse6) (and .cse19 .cse8 .cse21 .cse5 .cse10 .cse6 .cse11) (and .cse0 .cse7 .cse8 .cse16 .cse4 .cse5 .cse6) (and .cse22 .cse14 (<= ~a23~0 599999) .cse5 (<= (+ ~a29~0 28470) 0) .cse11 .cse6) (and .cse4 .cse5 .cse9 .cse11 .cse10 .cse6) (and .cse23 .cse18 .cse5 .cse6 .cse13 .cse11) (and .cse0 .cse23 .cse1 .cse2 .cse3 .cse21 .cse5 .cse6) (and .cse1 .cse12 .cse4 .cse5 .cse11 .cse10 .cse6) (and .cse0 .cse16 .cse14 .cse5 .cse6) (and .cse0 .cse23 .cse16 .cse24 .cse5 .cse6) (and .cse25 .cse1 .cse5 .cse11 .cse13 .cse6) (and .cse0 .cse8 .cse21 .cse3 .cse5 .cse6) (and .cse1 .cse5 (or .cse22 .cse26) .cse10 .cse6 .cse13 .cse11) (and .cse0 .cse23 .cse1 .cse17 .cse3 .cse24 .cse5 .cse6) (and .cse0 .cse1 .cse2 .cse3 .cse24 .cse4 .cse5 .cse6) (and (<= ~a29~0 220) .cse20 .cse5 .cse11 .cse6 .cse13) (and .cse25 .cse1 .cse12 .cse4 .cse5 .cse11 .cse6))))) [2021-12-17 04:30:46,758 INFO L858 garLoopResultBuilder]: For program point L903(lines 903 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,758 INFO L858 garLoopResultBuilder]: For program point L705(lines 705 715) no Hoare annotation was computed. [2021-12-17 04:30:46,758 INFO L858 garLoopResultBuilder]: For program point L705-2(lines 705 715) no Hoare annotation was computed. [2021-12-17 04:30:46,758 INFO L858 garLoopResultBuilder]: For program point L375(lines 375 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,759 INFO L858 garLoopResultBuilder]: For program point L309(lines 309 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,759 INFO L858 garLoopResultBuilder]: For program point L243(lines 243 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,759 INFO L858 garLoopResultBuilder]: For program point L177-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:30:46,759 INFO L858 garLoopResultBuilder]: For program point L111-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:30:46,759 INFO L858 garLoopResultBuilder]: For program point L45-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:30:46,759 INFO L858 garLoopResultBuilder]: For program point L178(line 178) no Hoare annotation was computed. [2021-12-17 04:30:46,759 INFO L858 garLoopResultBuilder]: For program point L112(line 112) no Hoare annotation was computed. [2021-12-17 04:30:46,759 INFO L858 garLoopResultBuilder]: For program point L46(line 46) no Hoare annotation was computed. [2021-12-17 04:30:46,759 INFO L861 garLoopResultBuilder]: At program point L1038(lines 1038 1054) the Hoare annotation is: true [2021-12-17 04:30:46,759 INFO L858 garLoopResultBuilder]: For program point L576(lines 576 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,759 INFO L858 garLoopResultBuilder]: For program point L510(lines 510 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,759 INFO L858 garLoopResultBuilder]: For program point L180-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:30:46,759 INFO L858 garLoopResultBuilder]: For program point L114-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:30:46,759 INFO L858 garLoopResultBuilder]: For program point L48-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:30:46,759 INFO L858 garLoopResultBuilder]: For program point L973(lines 973 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,760 INFO L858 garLoopResultBuilder]: For program point L841(lines 841 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,760 INFO L858 garLoopResultBuilder]: For program point L181(line 181) no Hoare annotation was computed. [2021-12-17 04:30:46,760 INFO L858 garLoopResultBuilder]: For program point L115(line 115) no Hoare annotation was computed. [2021-12-17 04:30:46,760 INFO L858 garLoopResultBuilder]: For program point L49(line 49) no Hoare annotation was computed. [2021-12-17 04:30:46,760 INFO L858 garLoopResultBuilder]: For program point L908(lines 908 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,760 INFO L858 garLoopResultBuilder]: For program point L446(lines 446 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,760 INFO L858 garLoopResultBuilder]: For program point L380(lines 380 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,760 INFO L858 garLoopResultBuilder]: For program point L645(lines 645 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,760 INFO L858 garLoopResultBuilder]: For program point L315(lines 315 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,760 INFO L858 garLoopResultBuilder]: For program point L183-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:30:46,760 INFO L858 garLoopResultBuilder]: For program point L117-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:30:46,760 INFO L858 garLoopResultBuilder]: For program point L51-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:30:46,760 INFO L858 garLoopResultBuilder]: For program point L250(lines 250 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,760 INFO L858 garLoopResultBuilder]: For program point L184(line 184) no Hoare annotation was computed. [2021-12-17 04:30:46,760 INFO L858 garLoopResultBuilder]: For program point L118(line 118) no Hoare annotation was computed. [2021-12-17 04:30:46,761 INFO L858 garLoopResultBuilder]: For program point L52(line 52) no Hoare annotation was computed. [2021-12-17 04:30:46,761 INFO L858 garLoopResultBuilder]: For program point L779(lines 779 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,761 INFO L854 garLoopResultBuilder]: At program point L1044-2(lines 1044 1053) the Hoare annotation is: (let ((.cse23 (<= 10 ~a25~0))) (let ((.cse22 (<= 312 ~a23~0)) (.cse9 (< 306 ~a23~0)) (.cse26 (and .cse23 (<= 308 ~a23~0))) (.cse4 (<= ~a25~0 10)) (.cse14 (= ~a25~0 12)) (.cse11 (= ~a4~0 1))) (let ((.cse15 (let ((.cse27 (<= ~a29~0 130))) (or (and .cse4 .cse27 .cse11) (and .cse14 .cse27 .cse11)))) (.cse19 (or .cse22 (and .cse23 .cse9) .cse26)) (.cse7 (<= ~a29~0 310110)) (.cse18 (<= ~a23~0 312)) (.cse16 (<= ~a23~0 137)) (.cse8 (<= 261 ~a29~0)) (.cse21 (= ~a25~0 11)) (.cse10 (<= ~a23~0 600000)) (.cse17 (<= (+ ~a29~0 320173) 0)) (.cse0 (= 0 ~a4~0)) (.cse2 (<= ~a29~0 140)) (.cse3 (<= ~a23~0 138)) (.cse24 (< 0 (+ ~a23~0 43))) (.cse20 (<= 13 ~a25~0)) (.cse13 (or (<= ~a23~0 306) (< 140 ~a29~0))) (.cse25 (= ~a25~0 9)) (.cse1 (<= ~a29~0 276)) (.cse12 (<= 130 ~a29~0)) (.cse5 (= ~a3~0 1)) (.cse6 (= ~a8~0 15))) (or (and .cse0 .cse1 .cse2 .cse3 (<= (+ ~a23~0 212) 0) .cse4 .cse5 .cse6) (and .cse7 .cse8 .cse9 .cse5 .cse10 .cse6 .cse11) (and .cse1 .cse12 .cse4 .cse5 (<= ~a29~0 245) .cse11 .cse6 .cse13) (and .cse0 .cse1 .cse14 .cse12 .cse5 .cse6 .cse13) (and .cse15 .cse16) (and .cse3 .cse5 .cse11 .cse6) (and .cse0 .cse14 .cse17 .cse5 .cse6) (and .cse15 .cse18 .cse12 .cse5 .cse6) (and .cse19 .cse20 .cse5 .cse10 .cse6 .cse11) (and .cse0 .cse1 .cse17 .cse3 .cse4 .cse5 .cse6) (and .cse19 .cse8 .cse21 .cse5 .cse10 .cse6 .cse11) (and .cse0 .cse7 .cse8 .cse16 .cse4 .cse5 .cse6) (and .cse22 .cse14 (<= ~a23~0 599999) .cse5 (<= (+ ~a29~0 28470) 0) .cse11 .cse6) (and .cse4 .cse5 .cse9 .cse11 .cse10 .cse6) (and .cse23 .cse18 .cse5 .cse6 .cse13 .cse11) (and .cse0 .cse23 .cse1 .cse2 .cse3 .cse21 .cse5 .cse6) (and .cse1 .cse12 .cse4 .cse5 .cse11 .cse10 .cse6) (and .cse0 .cse16 .cse14 .cse5 .cse6) (and .cse0 .cse23 .cse16 .cse24 .cse5 .cse6) (and .cse25 .cse1 .cse5 .cse11 .cse13 .cse6) (and .cse0 .cse8 .cse21 .cse3 .cse5 .cse6) (and .cse1 .cse5 (or .cse22 .cse26) .cse10 .cse6 .cse13 .cse11) (and .cse0 .cse23 .cse1 .cse17 .cse3 .cse24 .cse5 .cse6) (and .cse0 .cse1 .cse2 .cse3 .cse24 .cse4 .cse5 .cse6) (and (<= ~a29~0 220) .cse20 .cse5 .cse11 .cse6 .cse13) (and .cse25 .cse1 .cse12 .cse4 .cse5 .cse11 .cse6))))) [2021-12-17 04:30:46,761 INFO L858 garLoopResultBuilder]: For program point L846(lines 846 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,761 INFO L858 garLoopResultBuilder]: For program point L582(lines 582 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,761 INFO L858 garLoopResultBuilder]: For program point L186-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:30:46,762 INFO L858 garLoopResultBuilder]: For program point L120-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:30:46,762 INFO L858 garLoopResultBuilder]: For program point L54-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:30:46,762 INFO L858 garLoopResultBuilder]: For program point L979(lines 979 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,762 INFO L858 garLoopResultBuilder]: For program point L913(lines 913 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,762 INFO L858 garLoopResultBuilder]: For program point L517(lines 517 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,762 INFO L858 garLoopResultBuilder]: For program point L187(line 187) no Hoare annotation was computed. [2021-12-17 04:30:46,762 INFO L858 garLoopResultBuilder]: For program point L121(line 121) no Hoare annotation was computed. [2021-12-17 04:30:46,762 INFO L858 garLoopResultBuilder]: For program point L55(line 55) no Hoare annotation was computed. [2021-12-17 04:30:46,763 INFO L858 garLoopResultBuilder]: For program point L980(lines 980 990) no Hoare annotation was computed. [2021-12-17 04:30:46,763 INFO L858 garLoopResultBuilder]: For program point L914(lines 914 924) no Hoare annotation was computed. [2021-12-17 04:30:46,763 INFO L858 garLoopResultBuilder]: For program point L980-2(lines 980 990) no Hoare annotation was computed. [2021-12-17 04:30:46,763 INFO L858 garLoopResultBuilder]: For program point L914-2(lines 914 924) no Hoare annotation was computed. [2021-12-17 04:30:46,763 INFO L858 garLoopResultBuilder]: For program point L716(lines 716 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,763 INFO L858 garLoopResultBuilder]: For program point L320(lines 320 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,763 INFO L858 garLoopResultBuilder]: For program point L585(lines 585 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,763 INFO L858 garLoopResultBuilder]: For program point L453(lines 453 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,764 INFO L858 garLoopResultBuilder]: For program point L387(lines 387 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,764 INFO L858 garLoopResultBuilder]: For program point L189-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:30:46,764 INFO L858 garLoopResultBuilder]: For program point L123-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:30:46,764 INFO L858 garLoopResultBuilder]: For program point L57-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:30:46,764 INFO L858 garLoopResultBuilder]: For program point L784(lines 784 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,764 INFO L858 garLoopResultBuilder]: For program point L652(lines 652 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,764 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-17 04:30:46,764 INFO L858 garLoopResultBuilder]: For program point L190(line 190) no Hoare annotation was computed. [2021-12-17 04:30:46,765 INFO L858 garLoopResultBuilder]: For program point L124(line 124) no Hoare annotation was computed. [2021-12-17 04:30:46,765 INFO L858 garLoopResultBuilder]: For program point L58(line 58) no Hoare annotation was computed. [2021-12-17 04:30:46,765 INFO L858 garLoopResultBuilder]: For program point L1049(line 1049) no Hoare annotation was computed. [2021-12-17 04:30:46,765 INFO L858 garLoopResultBuilder]: For program point L851(lines 851 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,765 INFO L858 garLoopResultBuilder]: For program point L257(lines 257 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,765 INFO L858 garLoopResultBuilder]: For program point L192-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:30:46,765 INFO L858 garLoopResultBuilder]: For program point L126-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:30:46,766 INFO L858 garLoopResultBuilder]: For program point L60-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:30:46,766 INFO L858 garLoopResultBuilder]: For program point L193(line 193) no Hoare annotation was computed. [2021-12-17 04:30:46,766 INFO L858 garLoopResultBuilder]: For program point L127(line 127) no Hoare annotation was computed. [2021-12-17 04:30:46,766 INFO L858 garLoopResultBuilder]: For program point L61(line 61) no Hoare annotation was computed. [2021-12-17 04:30:46,766 INFO L858 garLoopResultBuilder]: For program point L722(lines 722 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,766 INFO L858 garLoopResultBuilder]: For program point L524(lines 524 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,766 INFO L858 garLoopResultBuilder]: For program point L657(lines 657 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,766 INFO L858 garLoopResultBuilder]: For program point L591(lines 591 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,767 INFO L858 garLoopResultBuilder]: For program point L525(lines 525 535) no Hoare annotation was computed. [2021-12-17 04:30:46,767 INFO L858 garLoopResultBuilder]: For program point L525-2(lines 525 535) no Hoare annotation was computed. [2021-12-17 04:30:46,767 INFO L858 garLoopResultBuilder]: For program point L327(lines 327 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,767 INFO L858 garLoopResultBuilder]: For program point L195-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:30:46,767 INFO L858 garLoopResultBuilder]: For program point L129-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:30:46,767 INFO L858 garLoopResultBuilder]: For program point L63-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:30:46,767 INFO L858 garLoopResultBuilder]: For program point L856(lines 856 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,767 INFO L858 garLoopResultBuilder]: For program point L790(lines 790 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,768 INFO L858 garLoopResultBuilder]: For program point L658(lines 658 667) no Hoare annotation was computed. [2021-12-17 04:30:46,768 INFO L858 garLoopResultBuilder]: For program point L658-2(lines 658 667) no Hoare annotation was computed. [2021-12-17 04:30:46,768 INFO L858 garLoopResultBuilder]: For program point L460(lines 460 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,768 INFO L858 garLoopResultBuilder]: For program point L394(lines 394 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,768 INFO L858 garLoopResultBuilder]: For program point L196(line 196) no Hoare annotation was computed. [2021-12-17 04:30:46,768 INFO L858 garLoopResultBuilder]: For program point L130(line 130) no Hoare annotation was computed. [2021-12-17 04:30:46,768 INFO L858 garLoopResultBuilder]: For program point L64(line 64) no Hoare annotation was computed. [2021-12-17 04:30:46,768 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-17 04:30:46,769 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 127) no Hoare annotation was computed. [2021-12-17 04:30:46,769 INFO L858 garLoopResultBuilder]: For program point L264(lines 264 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,769 INFO L858 garLoopResultBuilder]: For program point L198-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:30:46,769 INFO L858 garLoopResultBuilder]: For program point L132-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:30:46,769 INFO L858 garLoopResultBuilder]: For program point L66-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:30:46,769 INFO L858 garLoopResultBuilder]: For program point L991(lines 991 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,769 INFO L858 garLoopResultBuilder]: For program point L925(lines 925 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,770 INFO L858 garLoopResultBuilder]: For program point L727(lines 727 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,770 INFO L858 garLoopResultBuilder]: For program point L199(line 199) no Hoare annotation was computed. [2021-12-17 04:30:46,770 INFO L858 garLoopResultBuilder]: For program point L133(line 133) no Hoare annotation was computed. [2021-12-17 04:30:46,770 INFO L858 garLoopResultBuilder]: For program point L67(line 67) no Hoare annotation was computed. [2021-12-17 04:30:46,770 INFO L858 garLoopResultBuilder]: For program point L926(lines 926 936) no Hoare annotation was computed. [2021-12-17 04:30:46,770 INFO L858 garLoopResultBuilder]: For program point L926-2(lines 926 936) no Hoare annotation was computed. [2021-12-17 04:30:46,770 INFO L858 garLoopResultBuilder]: For program point L728(lines 728 740) no Hoare annotation was computed. [2021-12-17 04:30:46,771 INFO L858 garLoopResultBuilder]: For program point L728-2(lines 728 740) no Hoare annotation was computed. [2021-12-17 04:30:46,771 INFO L858 garLoopResultBuilder]: For program point L596(lines 596 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,771 INFO L858 garLoopResultBuilder]: For program point L332(lines 332 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,771 INFO L858 garLoopResultBuilder]: For program point L597(lines 597 607) no Hoare annotation was computed. [2021-12-17 04:30:46,771 INFO L858 garLoopResultBuilder]: For program point L597-2(lines 597 607) no Hoare annotation was computed. [2021-12-17 04:30:46,771 INFO L858 garLoopResultBuilder]: For program point L201-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:30:46,771 INFO L858 garLoopResultBuilder]: For program point L135-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:30:46,771 INFO L858 garLoopResultBuilder]: For program point L69-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:30:46,772 INFO L858 garLoopResultBuilder]: For program point L862(lines 862 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,772 INFO L858 garLoopResultBuilder]: For program point L466(lines 466 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,772 INFO L858 garLoopResultBuilder]: For program point L202(line 202) no Hoare annotation was computed. [2021-12-17 04:30:46,772 INFO L858 garLoopResultBuilder]: For program point L136(line 136) no Hoare annotation was computed. [2021-12-17 04:30:46,772 INFO L858 garLoopResultBuilder]: For program point L70(line 70) no Hoare annotation was computed. [2021-12-17 04:30:46,772 INFO L858 garLoopResultBuilder]: For program point L797(lines 797 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,772 INFO L858 garLoopResultBuilder]: For program point L401(lines 401 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,772 INFO L858 garLoopResultBuilder]: For program point L270(lines 270 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,773 INFO L858 garLoopResultBuilder]: For program point L204-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:30:46,773 INFO L858 garLoopResultBuilder]: For program point L138-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:30:46,773 INFO L858 garLoopResultBuilder]: For program point L72-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:30:46,773 INFO L858 garLoopResultBuilder]: For program point L205(line 205) no Hoare annotation was computed. [2021-12-17 04:30:46,773 INFO L858 garLoopResultBuilder]: For program point L139(line 139) no Hoare annotation was computed. [2021-12-17 04:30:46,773 INFO L858 garLoopResultBuilder]: For program point L73(line 73) no Hoare annotation was computed. [2021-12-17 04:30:46,773 INFO L858 garLoopResultBuilder]: For program point L998(lines 998 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,774 INFO L858 garLoopResultBuilder]: For program point L668(lines 668 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,774 INFO L858 garLoopResultBuilder]: For program point L536(lines 536 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,774 INFO L858 garLoopResultBuilder]: For program point L339(lines 339 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,774 INFO L858 garLoopResultBuilder]: For program point L207-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:30:46,774 INFO L858 garLoopResultBuilder]: For program point L141-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:30:46,774 INFO L858 garLoopResultBuilder]: For program point L75-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:30:46,774 INFO L858 garLoopResultBuilder]: For program point L802(lines 802 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,774 INFO L858 garLoopResultBuilder]: For program point L208(line 208) no Hoare annotation was computed. [2021-12-17 04:30:46,775 INFO L858 garLoopResultBuilder]: For program point L142(line 142) no Hoare annotation was computed. [2021-12-17 04:30:46,775 INFO L858 garLoopResultBuilder]: For program point L76(line 76) no Hoare annotation was computed. [2021-12-17 04:30:46,775 INFO L858 garLoopResultBuilder]: For program point L869(lines 869 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,775 INFO L858 garLoopResultBuilder]: For program point L473(lines 473 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,775 INFO L858 garLoopResultBuilder]: For program point L275(lines 275 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,775 INFO L858 garLoopResultBuilder]: For program point L408(lines 408 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,775 INFO L858 garLoopResultBuilder]: For program point L210-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:30:46,775 INFO L858 garLoopResultBuilder]: For program point L144-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:30:46,776 INFO L858 garLoopResultBuilder]: For program point L78-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:30:46,776 INFO L858 garLoopResultBuilder]: For program point L1003(lines 1003 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,776 INFO L858 garLoopResultBuilder]: For program point L937(lines 937 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,776 INFO L858 garLoopResultBuilder]: For program point L673(lines 673 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,776 INFO L858 garLoopResultBuilder]: For program point L541(lines 541 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,776 INFO L858 garLoopResultBuilder]: For program point L409(lines 409 420) no Hoare annotation was computed. [2021-12-17 04:30:46,776 INFO L858 garLoopResultBuilder]: For program point L409-2(lines 409 420) no Hoare annotation was computed. [2021-12-17 04:30:46,777 INFO L858 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2021-12-17 04:30:46,777 INFO L858 garLoopResultBuilder]: For program point L145(line 145) no Hoare annotation was computed. [2021-12-17 04:30:46,777 INFO L858 garLoopResultBuilder]: For program point L79(line 79) no Hoare annotation was computed. [2021-12-17 04:30:46,777 INFO L858 garLoopResultBuilder]: For program point L608(lines 608 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,777 INFO L858 garLoopResultBuilder]: For program point L344(lines 344 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,777 INFO L858 garLoopResultBuilder]: For program point L278(lines 278 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,777 INFO L858 garLoopResultBuilder]: For program point L741(lines 741 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,777 INFO L858 garLoopResultBuilder]: For program point L213-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:30:46,778 INFO L858 garLoopResultBuilder]: For program point L147-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:30:46,778 INFO L858 garLoopResultBuilder]: For program point L81-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:30:46,778 INFO L858 garLoopResultBuilder]: For program point L214(line 214) no Hoare annotation was computed. [2021-12-17 04:30:46,778 INFO L858 garLoopResultBuilder]: For program point L148(line 148) no Hoare annotation was computed. [2021-12-17 04:30:46,778 INFO L858 garLoopResultBuilder]: For program point L82(line 82) no Hoare annotation was computed. [2021-12-17 04:30:46,778 INFO L858 garLoopResultBuilder]: For program point L875(lines 875 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,778 INFO L858 garLoopResultBuilder]: For program point L809(lines 809 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,778 INFO L858 garLoopResultBuilder]: For program point L942(lines 942 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,779 INFO L858 garLoopResultBuilder]: For program point L876(lines 876 885) no Hoare annotation was computed. [2021-12-17 04:30:46,779 INFO L858 garLoopResultBuilder]: For program point L876-2(lines 876 885) no Hoare annotation was computed. [2021-12-17 04:30:46,779 INFO L858 garLoopResultBuilder]: For program point L480(lines 480 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,779 INFO L858 garLoopResultBuilder]: For program point L150-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:30:46,779 INFO L858 garLoopResultBuilder]: For program point L84-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:30:46,779 INFO L858 garLoopResultBuilder]: For program point L613(lines 613 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,779 INFO L858 garLoopResultBuilder]: For program point L547(lines 547 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,780 INFO L858 garLoopResultBuilder]: For program point L151(line 151) no Hoare annotation was computed. [2021-12-17 04:30:46,780 INFO L858 garLoopResultBuilder]: For program point L85(line 85) no Hoare annotation was computed. [2021-12-17 04:30:46,780 INFO L858 garLoopResultBuilder]: For program point L1010(lines 1010 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,780 INFO L858 garLoopResultBuilder]: For program point L680(lines 680 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,780 INFO L858 garLoopResultBuilder]: For program point L614(lines 614 624) no Hoare annotation was computed. [2021-12-17 04:30:46,780 INFO L858 garLoopResultBuilder]: For program point L614-2(lines 614 624) no Hoare annotation was computed. [2021-12-17 04:30:46,780 INFO L858 garLoopResultBuilder]: For program point L350(lines 350 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,780 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-17 04:30:46,781 INFO L858 garLoopResultBuilder]: For program point L285(lines 285 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,781 INFO L858 garLoopResultBuilder]: For program point L153-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:30:46,781 INFO L858 garLoopResultBuilder]: For program point L87-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:30:46,781 INFO L858 garLoopResultBuilder]: For program point L814(lines 814 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,781 INFO L858 garLoopResultBuilder]: For program point L748(lines 748 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,781 INFO L858 garLoopResultBuilder]: For program point L154(line 154) no Hoare annotation was computed. [2021-12-17 04:30:46,781 INFO L858 garLoopResultBuilder]: For program point L88(line 88) no Hoare annotation was computed. [2021-12-17 04:30:46,781 INFO L858 garLoopResultBuilder]: For program point L815(lines 815 825) no Hoare annotation was computed. [2021-12-17 04:30:46,782 INFO L858 garLoopResultBuilder]: For program point L815-2(lines 815 825) no Hoare annotation was computed. [2021-12-17 04:30:46,782 INFO L858 garLoopResultBuilder]: For program point L552(lines 552 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,782 INFO L858 garLoopResultBuilder]: For program point L156-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:30:46,782 INFO L858 garLoopResultBuilder]: For program point L90-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:30:46,782 INFO L858 garLoopResultBuilder]: For program point L1015(lines 1015 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,782 INFO L858 garLoopResultBuilder]: For program point L949(lines 949 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,782 INFO L858 garLoopResultBuilder]: For program point L685(lines 685 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,783 INFO L858 garLoopResultBuilder]: For program point L487(lines 487 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,783 INFO L858 garLoopResultBuilder]: For program point L421(lines 421 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,783 INFO L858 garLoopResultBuilder]: For program point L157(line 157) no Hoare annotation was computed. [2021-12-17 04:30:46,783 INFO L858 garLoopResultBuilder]: For program point L91(line 91) no Hoare annotation was computed. [2021-12-17 04:30:46,783 INFO L858 garLoopResultBuilder]: For program point L950(lines 950 962) no Hoare annotation was computed. [2021-12-17 04:30:46,783 INFO L858 garLoopResultBuilder]: For program point L950-2(lines 950 962) no Hoare annotation was computed. [2021-12-17 04:30:46,783 INFO L858 garLoopResultBuilder]: For program point L488(lines 488 496) no Hoare annotation was computed. [2021-12-17 04:30:46,783 INFO L858 garLoopResultBuilder]: For program point L488-2(lines 488 496) no Hoare annotation was computed. [2021-12-17 04:30:46,784 INFO L858 garLoopResultBuilder]: For program point L356(lines 356 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,784 INFO L858 garLoopResultBuilder]: For program point L290(lines 290 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,784 INFO L858 garLoopResultBuilder]: For program point L224(lines 224 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,784 INFO L858 garLoopResultBuilder]: For program point L753(lines 753 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,784 INFO L858 garLoopResultBuilder]: For program point L159-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:30:46,784 INFO L858 garLoopResultBuilder]: For program point L93-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:30:46,784 INFO L858 garLoopResultBuilder]: For program point L886(lines 886 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,784 INFO L858 garLoopResultBuilder]: For program point L160(line 160) no Hoare annotation was computed. [2021-12-17 04:30:46,785 INFO L858 garLoopResultBuilder]: For program point L94(line 94) no Hoare annotation was computed. [2021-12-17 04:30:46,785 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-17 04:30:46,785 INFO L858 garLoopResultBuilder]: For program point L162-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:30:46,785 INFO L858 garLoopResultBuilder]: For program point L96-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:30:46,786 INFO L858 garLoopResultBuilder]: For program point L691(lines 691 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,786 INFO L858 garLoopResultBuilder]: For program point L625(lines 625 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,786 INFO L858 garLoopResultBuilder]: For program point L559(lines 559 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,786 INFO L858 garLoopResultBuilder]: For program point L427(lines 427 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,786 INFO L858 garLoopResultBuilder]: For program point L163(line 163) no Hoare annotation was computed. [2021-12-17 04:30:46,786 INFO L858 garLoopResultBuilder]: For program point L97(line 97) no Hoare annotation was computed. [2021-12-17 04:30:46,786 INFO L858 garLoopResultBuilder]: For program point L1022(lines 1022 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,786 INFO L858 garLoopResultBuilder]: For program point L891(lines 891 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,787 INFO L858 garLoopResultBuilder]: For program point L363(lines 363 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,787 INFO L858 garLoopResultBuilder]: For program point L297(lines 297 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,787 INFO L858 garLoopResultBuilder]: For program point L231(lines 231 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,787 INFO L858 garLoopResultBuilder]: For program point L165-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:30:46,787 INFO L858 garLoopResultBuilder]: For program point L99-1(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:30:46,787 INFO L858 garLoopResultBuilder]: For program point L33(lines 33 35) no Hoare annotation was computed. [2021-12-17 04:30:46,787 INFO L858 garLoopResultBuilder]: For program point L33-2(lines 32 1036) no Hoare annotation was computed. [2021-12-17 04:30:46,787 INFO L858 garLoopResultBuilder]: For program point L826(lines 826 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,788 INFO L858 garLoopResultBuilder]: For program point L760(lines 760 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,788 INFO L858 garLoopResultBuilder]: For program point L166(line 166) no Hoare annotation was computed. [2021-12-17 04:30:46,788 INFO L858 garLoopResultBuilder]: For program point L100(line 100) no Hoare annotation was computed. [2021-12-17 04:30:46,788 INFO L858 garLoopResultBuilder]: For program point L34(line 34) no Hoare annotation was computed. [2021-12-17 04:30:46,788 INFO L858 garLoopResultBuilder]: For program point L497(lines 497 1034) no Hoare annotation was computed. [2021-12-17 04:30:46,791 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-17 04:30:46,792 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-17 04:30:46,827 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.12 04:30:46 BoogieIcfgContainer [2021-12-17 04:30:46,836 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-17 04:30:46,837 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-17 04:30:46,837 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-17 04:30:46,837 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-17 04:30:46,838 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 04:26:18" (3/4) ... [2021-12-17 04:30:46,840 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-17 04:30:46,862 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-12-17 04:30:46,870 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-12-17 04:30:46,871 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-17 04:30:46,873 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-17 04:30:46,984 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-17 04:30:46,984 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-17 04:30:46,985 INFO L158 Benchmark]: Toolchain (without parser) took 270739.00ms. Allocated memory was 96.5MB in the beginning and 1.3GB in the end (delta: 1.2GB). Free memory was 67.0MB in the beginning and 819.1MB in the end (delta: -752.1MB). Peak memory consumption was 409.6MB. Max. memory is 16.1GB. [2021-12-17 04:30:46,985 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 96.5MB. Free memory is still 53.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-17 04:30:46,985 INFO L158 Benchmark]: CACSL2BoogieTranslator took 710.07ms. Allocated memory was 96.5MB in the beginning and 125.8MB in the end (delta: 29.4MB). Free memory was 67.0MB in the beginning and 70.7MB in the end (delta: -3.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2021-12-17 04:30:46,985 INFO L158 Benchmark]: Boogie Procedure Inliner took 126.08ms. Allocated memory is still 125.8MB. Free memory was 70.6MB in the beginning and 53.4MB in the end (delta: 17.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2021-12-17 04:30:46,986 INFO L158 Benchmark]: Boogie Preprocessor took 184.07ms. Allocated memory is still 125.8MB. Free memory was 53.4MB in the beginning and 89.6MB in the end (delta: -36.3MB). Peak memory consumption was 21.2MB. Max. memory is 16.1GB. [2021-12-17 04:30:46,988 INFO L158 Benchmark]: RCFGBuilder took 1413.39ms. Allocated memory was 125.8MB in the beginning and 195.0MB in the end (delta: 69.2MB). Free memory was 89.6MB in the beginning and 141.5MB in the end (delta: -51.9MB). Peak memory consumption was 46.7MB. Max. memory is 16.1GB. [2021-12-17 04:30:46,988 INFO L158 Benchmark]: TraceAbstraction took 268148.25ms. Allocated memory was 195.0MB in the beginning and 1.3GB in the end (delta: 1.1GB). Free memory was 141.5MB in the beginning and 844.3MB in the end (delta: -702.8MB). Peak memory consumption was 952.4MB. Max. memory is 16.1GB. [2021-12-17 04:30:46,989 INFO L158 Benchmark]: Witness Printer took 147.58ms. Allocated memory is still 1.3GB. Free memory was 844.3MB in the beginning and 819.1MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2021-12-17 04:30:46,996 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 96.5MB. Free memory is still 53.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 710.07ms. Allocated memory was 96.5MB in the beginning and 125.8MB in the end (delta: 29.4MB). Free memory was 67.0MB in the beginning and 70.7MB in the end (delta: -3.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 126.08ms. Allocated memory is still 125.8MB. Free memory was 70.6MB in the beginning and 53.4MB in the end (delta: 17.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 184.07ms. Allocated memory is still 125.8MB. Free memory was 53.4MB in the beginning and 89.6MB in the end (delta: -36.3MB). Peak memory consumption was 21.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1413.39ms. Allocated memory was 125.8MB in the beginning and 195.0MB in the end (delta: 69.2MB). Free memory was 89.6MB in the beginning and 141.5MB in the end (delta: -51.9MB). Peak memory consumption was 46.7MB. Max. memory is 16.1GB. * TraceAbstraction took 268148.25ms. Allocated memory was 195.0MB in the beginning and 1.3GB in the end (delta: 1.1GB). Free memory was 141.5MB in the beginning and 844.3MB in the end (delta: -702.8MB). Peak memory consumption was 952.4MB. Max. memory is 16.1GB. * Witness Printer took 147.58ms. Allocated memory is still 1.3GB. Free memory was 844.3MB in the beginning and 819.1MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 127]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 283 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 268.0s, OverallIterations: 26, TraceHistogramMax: 7, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.3s, AutomataDifference: 21.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 229.8s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4585 SdHoareTripleChecker+Valid, 18.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4585 mSDsluCounter, 4574 SdHoareTripleChecker+Invalid, 14.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 618 mSDsCounter, 3316 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 17897 IncrementalHoareTripleChecker+Invalid, 21213 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3316 mSolverCounterUnsat, 3956 mSDtfsCounter, 17897 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2804 GetRequests, 2757 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21058occurred in iteration=20, InterpolantAutomatonStates: 88, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.5s AutomataMinimizationTime, 26 MinimizatonAttempts, 31766 StatesRemovedByMinimization, 24 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 189 NumberOfFragments, 1279 HoareAnnotationTreeSize, 3 FomulaSimplifications, 385698 FormulaSimplificationTreeSizeReduction, 224.6s HoareSimplificationTime, 3 FomulaSimplificationsInter, 1915418 FormulaSimplificationTreeSizeReductionInter, 5.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 9.6s InterpolantComputationTime, 13738 NumberOfCodeBlocks, 13738 NumberOfCodeBlocksAsserted, 29 NumberOfCheckSat, 14334 ConstructedInterpolants, 0 QuantifiedInterpolants, 38523 SizeOfPredicates, 6 NumberOfNonLiveVariables, 2708 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 30 InterpolantComputations, 25 PerfectInterpolantSequences, 22470/23488 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 1044]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((((0 == a4 && a29 <= 276) && a29 <= 140) && a23 <= 138) && a23 + 212 <= 0) && a25 <= 10) && a3 == 1) && a8 == 15) || ((((((a29 <= 310110 && 261 <= a29) && 306 < a23) && a3 == 1) && a23 <= 600000) && a8 == 15) && a4 == 1)) || (((((((a29 <= 276 && 130 <= a29) && a25 <= 10) && a3 == 1) && a29 <= 245) && a4 == 1) && a8 == 15) && (a23 <= 306 || 140 < a29))) || ((((((0 == a4 && a29 <= 276) && a25 == 12) && 130 <= a29) && a3 == 1) && a8 == 15) && (a23 <= 306 || 140 < a29))) || ((((a25 <= 10 && a29 <= 130) && a4 == 1) || ((a25 == 12 && a29 <= 130) && a4 == 1)) && a23 <= 137)) || (((a23 <= 138 && a3 == 1) && a4 == 1) && a8 == 15)) || ((((0 == a4 && a25 == 12) && a29 + 320173 <= 0) && a3 == 1) && a8 == 15)) || (((((((a25 <= 10 && a29 <= 130) && a4 == 1) || ((a25 == 12 && a29 <= 130) && a4 == 1)) && a23 <= 312) && 130 <= a29) && a3 == 1) && a8 == 15)) || (((((((312 <= a23 || (10 <= a25 && 306 < a23)) || (10 <= a25 && 308 <= a23)) && 13 <= a25) && a3 == 1) && a23 <= 600000) && a8 == 15) && a4 == 1)) || ((((((0 == a4 && a29 <= 276) && a29 + 320173 <= 0) && a23 <= 138) && a25 <= 10) && a3 == 1) && a8 == 15)) || ((((((((312 <= a23 || (10 <= a25 && 306 < a23)) || (10 <= a25 && 308 <= a23)) && 261 <= a29) && a25 == 11) && a3 == 1) && a23 <= 600000) && a8 == 15) && a4 == 1)) || ((((((0 == a4 && a29 <= 310110) && 261 <= a29) && a23 <= 137) && a25 <= 10) && a3 == 1) && a8 == 15)) || ((((((312 <= a23 && a25 == 12) && a23 <= 599999) && a3 == 1) && a29 + 28470 <= 0) && a4 == 1) && a8 == 15)) || (((((a25 <= 10 && a3 == 1) && 306 < a23) && a4 == 1) && a23 <= 600000) && a8 == 15)) || (((((10 <= a25 && a23 <= 312) && a3 == 1) && a8 == 15) && (a23 <= 306 || 140 < a29)) && a4 == 1)) || (((((((0 == a4 && 10 <= a25) && a29 <= 276) && a29 <= 140) && a23 <= 138) && a25 == 11) && a3 == 1) && a8 == 15)) || ((((((a29 <= 276 && 130 <= a29) && a25 <= 10) && a3 == 1) && a4 == 1) && a23 <= 600000) && a8 == 15)) || ((((0 == a4 && a23 <= 137) && a25 == 12) && a3 == 1) && a8 == 15)) || (((((0 == a4 && 10 <= a25) && a23 <= 137) && 0 < a23 + 43) && a3 == 1) && a8 == 15)) || (((((a25 == 9 && a29 <= 276) && a3 == 1) && a4 == 1) && (a23 <= 306 || 140 < a29)) && a8 == 15)) || (((((0 == a4 && 261 <= a29) && a25 == 11) && a23 <= 138) && a3 == 1) && a8 == 15)) || ((((((a29 <= 276 && a3 == 1) && (312 <= a23 || (10 <= a25 && 308 <= a23))) && a23 <= 600000) && a8 == 15) && (a23 <= 306 || 140 < a29)) && a4 == 1)) || (((((((0 == a4 && 10 <= a25) && a29 <= 276) && a29 + 320173 <= 0) && a23 <= 138) && 0 < a23 + 43) && a3 == 1) && a8 == 15)) || (((((((0 == a4 && a29 <= 276) && a29 <= 140) && a23 <= 138) && 0 < a23 + 43) && a25 <= 10) && a3 == 1) && a8 == 15)) || (((((a29 <= 220 && 13 <= a25) && a3 == 1) && a4 == 1) && a8 == 15) && (a23 <= 306 || 140 < a29))) || ((((((a25 == 9 && a29 <= 276) && 130 <= a29) && a25 <= 10) && a3 == 1) && a4 == 1) && a8 == 15) - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((((0 == a4 && a29 <= 276) && a29 <= 140) && a23 <= 138) && a23 + 212 <= 0) && a25 <= 10) && a3 == 1) && a8 == 15) || ((((((a29 <= 310110 && 261 <= a29) && 306 < a23) && a3 == 1) && a23 <= 600000) && a8 == 15) && a4 == 1)) || (((((((a29 <= 276 && 130 <= a29) && a25 <= 10) && a3 == 1) && a29 <= 245) && a4 == 1) && a8 == 15) && (a23 <= 306 || 140 < a29))) || ((((((0 == a4 && a29 <= 276) && a25 == 12) && 130 <= a29) && a3 == 1) && a8 == 15) && (a23 <= 306 || 140 < a29))) || ((((a25 <= 10 && a29 <= 130) && a4 == 1) || ((a25 == 12 && a29 <= 130) && a4 == 1)) && a23 <= 137)) || (((a23 <= 138 && a3 == 1) && a4 == 1) && a8 == 15)) || ((((0 == a4 && a25 == 12) && a29 + 320173 <= 0) && a3 == 1) && a8 == 15)) || (((((((a25 <= 10 && a29 <= 130) && a4 == 1) || ((a25 == 12 && a29 <= 130) && a4 == 1)) && a23 <= 312) && 130 <= a29) && a3 == 1) && a8 == 15)) || (((((((312 <= a23 || (10 <= a25 && 306 < a23)) || (10 <= a25 && 308 <= a23)) && 13 <= a25) && a3 == 1) && a23 <= 600000) && a8 == 15) && a4 == 1)) || ((((((0 == a4 && a29 <= 276) && a29 + 320173 <= 0) && a23 <= 138) && a25 <= 10) && a3 == 1) && a8 == 15)) || ((((((((312 <= a23 || (10 <= a25 && 306 < a23)) || (10 <= a25 && 308 <= a23)) && 261 <= a29) && a25 == 11) && a3 == 1) && a23 <= 600000) && a8 == 15) && a4 == 1)) || ((((((0 == a4 && a29 <= 310110) && 261 <= a29) && a23 <= 137) && a25 <= 10) && a3 == 1) && a8 == 15)) || ((((((312 <= a23 && a25 == 12) && a23 <= 599999) && a3 == 1) && a29 + 28470 <= 0) && a4 == 1) && a8 == 15)) || (((((a25 <= 10 && a3 == 1) && 306 < a23) && a4 == 1) && a23 <= 600000) && a8 == 15)) || (((((10 <= a25 && a23 <= 312) && a3 == 1) && a8 == 15) && (a23 <= 306 || 140 < a29)) && a4 == 1)) || (((((((0 == a4 && 10 <= a25) && a29 <= 276) && a29 <= 140) && a23 <= 138) && a25 == 11) && a3 == 1) && a8 == 15)) || ((((((a29 <= 276 && 130 <= a29) && a25 <= 10) && a3 == 1) && a4 == 1) && a23 <= 600000) && a8 == 15)) || ((((0 == a4 && a23 <= 137) && a25 == 12) && a3 == 1) && a8 == 15)) || (((((0 == a4 && 10 <= a25) && a23 <= 137) && 0 < a23 + 43) && a3 == 1) && a8 == 15)) || (((((a25 == 9 && a29 <= 276) && a3 == 1) && a4 == 1) && (a23 <= 306 || 140 < a29)) && a8 == 15)) || (((((0 == a4 && 261 <= a29) && a25 == 11) && a23 <= 138) && a3 == 1) && a8 == 15)) || ((((((a29 <= 276 && a3 == 1) && (312 <= a23 || (10 <= a25 && 308 <= a23))) && a23 <= 600000) && a8 == 15) && (a23 <= 306 || 140 < a29)) && a4 == 1)) || (((((((0 == a4 && 10 <= a25) && a29 <= 276) && a29 + 320173 <= 0) && a23 <= 138) && 0 < a23 + 43) && a3 == 1) && a8 == 15)) || (((((((0 == a4 && a29 <= 276) && a29 <= 140) && a23 <= 138) && 0 < a23 + 43) && a25 <= 10) && a3 == 1) && a8 == 15)) || (((((a29 <= 220 && 13 <= a25) && a3 == 1) && a4 == 1) && a8 == 15) && (a23 <= 306 || 140 < a29))) || ((((((a25 == 9 && a29 <= 276) && 130 <= a29) && a25 <= 10) && a3 == 1) && a4 == 1) && a8 == 15) - InvariantResult [Line: 1038]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-12-17 04:30:47,026 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE